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Finding the Fourth Proportional to 607,565.40, 911,348.10 and 572,573.40

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Solution

The fourth proportional to 607,565.40, 911,348.10 and 572,573.40 is: 858,860.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    607,565.40 : 911,348.10 = 572,573.40 : x
  2. Step 2: Convert to fraction form
    607,565.40/911,348.10 = 572,573.40/x
  3. Step 3: Cross multiply
    607,565.40x = 911,348.10 × 572,573.40
  4. Step 4: Simplify right side
    607,565.40x = 521,813,680,200.54
  5. Step 5: Solve for x
    x = 521,813,680,200.54/607,565.40
  6. Step 6: Final answer
    x = 858,860.10

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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.