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Finding the Fourth Proportional to 623,718.60, 935,577.90 and 576,479.40

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Solution

The fourth proportional to 623,718.60, 935,577.90 and 576,479.40 is: 864,719.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    623,718.60 : 935,577.90 = 576,479.40 : x
  2. Step 2: Convert to fraction form
    623,718.60/935,577.90 = 576,479.40/x
  3. Step 3: Cross multiply
    623,718.60x = 935,577.90 × 576,479.40
  4. Step 4: Simplify right side
    623,718.60x = 539,341,386,445.26
  5. Step 5: Solve for x
    x = 539,341,386,445.26/623,718.60
  6. Step 6: Final answer
    x = 864,719.10

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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.