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Finding the Fourth Proportional to 623,908.90, 935,863.35 and 476,452.90

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Solution

The fourth proportional to 623,908.90, 935,863.35 and 476,452.90 is: 714,679.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    623,908.90 : 935,863.35 = 476,452.90 : x
  2. Step 2: Convert to fraction form
    623,908.90/935,863.35 = 476,452.90/x
  3. Step 3: Cross multiply
    623,908.90x = 935,863.35 × 476,452.90
  4. Step 4: Simplify right side
    623,908.90x = 445,894,807,111.22
  5. Step 5: Solve for x
    x = 445,894,807,111.22/623,908.90
  6. Step 6: Final answer
    x = 714,679.35

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Half scale
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Double scale
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Similar ratio
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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.