Home / 623,007.60-934,511.40-410,431.20

Finding the Fourth Proportional to 623,007.60, 934,511.40 and 410,431.20

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Solution

The fourth proportional to 623,007.60, 934,511.40 and 410,431.20 is: 615,646.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    623,007.60 : 934,511.40 = 410,431.20 : x
  2. Step 2: Convert to fraction form
    623,007.60/934,511.40 = 410,431.20/x
  3. Step 3: Cross multiply
    623,007.60x = 934,511.40 × 410,431.20
  4. Step 4: Simplify right side
    623,007.60x = 383,552,635,315.68
  5. Step 5: Solve for x
    x = 383,552,635,315.68/623,007.60
  6. Step 6: Final answer
    x = 615,646.80

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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.