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Finding the Fourth Proportional to 623,923.40, 935,885.10 and 476,467.40

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Solution

The fourth proportional to 623,923.40, 935,885.10 and 476,467.40 is: 714,701.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    623,923.40 : 935,885.10 = 476,467.40 : x
  2. Step 2: Convert to fraction form
    623,923.40/935,885.10 = 476,467.40/x
  3. Step 3: Cross multiply
    623,923.40x = 935,885.10 × 476,467.40
  4. Step 4: Simplify right side
    623,923.40x = 445,918,740,295.74
  5. Step 5: Solve for x
    x = 445,918,740,295.74/623,923.40
  6. Step 6: Final answer
    x = 714,701.10

Related Problems

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Half scale
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Double scale
Find fourth proportional to 623,924.40, 935,886.60 and 476,468.40
Similar ratio
Find fourth proportional to 935,885.10, 1,403,827.65 and 714,701.10
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.