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Finding the Fourth Proportional to 559,561.60, 838,640.49 and 239,337.72

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Solution

The fourth proportional to 559,561.60, 838,640.49 and 239,337.72 is: 358,706.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,561.60 : 838,640.49 = 239,337.72 : x
  2. Step 2: Convert to fraction form
    559,561.60/838,640.49 = 239,337.72/x
  3. Step 3: Cross multiply
    559,561.60x = 838,640.49 × 239,337.72
  4. Step 4: Simplify right side
    559,561.60x = 200,718,301,878.77
  5. Step 5: Solve for x
    x = 200,718,301,878.77/559,561.60
  6. Step 6: Final answer
    x = 358,706.35

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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.