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Finding the Fourth Proportional to 623,924.40, 935,886.60 and 476,468.40

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Solution

The fourth proportional to 623,924.40, 935,886.60 and 476,468.40 is: 714,702.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    623,924.40 : 935,886.60 = 476,468.40 : x
  2. Step 2: Convert to fraction form
    623,924.40/935,886.60 = 476,468.40/x
  3. Step 3: Cross multiply
    623,924.40x = 935,886.60 × 476,468.40
  4. Step 4: Simplify right side
    623,924.40x = 445,920,390,883.44
  5. Step 5: Solve for x
    x = 445,920,390,883.44/623,924.40
  6. Step 6: Final answer
    x = 714,702.60

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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.