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Finding the Fourth Proportional to 595,687.80, 893,531.70 and 392,734.20

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Solution

The fourth proportional to 595,687.80, 893,531.70 and 392,734.20 is: 589,101.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    595,687.80 : 893,531.70 = 392,734.20 : x
  2. Step 2: Convert to fraction form
    595,687.80/893,531.70 = 392,734.20/x
  3. Step 3: Cross multiply
    595,687.80x = 893,531.70 × 392,734.20
  4. Step 4: Simplify right side
    595,687.80x = 350,920,457,374.14
  5. Step 5: Solve for x
    x = 350,920,457,374.14/595,687.80
  6. Step 6: Final answer
    x = 589,101.30

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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.