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Finding the Fourth Proportional to 572,487.40, 800,432.60 and 572,487.40

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Solution

The fourth proportional to 572,487.40, 800,432.60 and 572,487.40 is: 800,432.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,487.40 : 800,432.60 = 572,487.40 : x
  2. Step 2: Convert to fraction form
    572,487.40/800,432.60 = 572,487.40/x
  3. Step 3: Cross multiply
    572,487.40x = 800,432.60 × 572,487.40
  4. Step 4: Simplify right side
    572,487.40x = 458,237,578,049.24
  5. Step 5: Solve for x
    x = 458,237,578,049.24/572,487.40
  6. Step 6: Final answer
    x = 800,432.60

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.