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Finding the Fourth Proportional to 559,042.40, 838,563.60 and 498,389.60

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Solution

The fourth proportional to 559,042.40, 838,563.60 and 498,389.60 is: 747,584.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,042.40 : 838,563.60 = 498,389.60 : x
  2. Step 2: Convert to fraction form
    559,042.40/838,563.60 = 498,389.60/x
  3. Step 3: Cross multiply
    559,042.40x = 838,563.60 × 498,389.60
  4. Step 4: Simplify right side
    559,042.40x = 417,931,377,178.56
  5. Step 5: Solve for x
    x = 417,931,377,178.56/559,042.40
  6. Step 6: Final answer
    x = 747,584.40

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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.