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Finding the Fourth Proportional to 559,186.20, 838,123.20 and 239,337.45

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Solution

The fourth proportional to 559,186.20, 838,123.20 and 239,337.45 is: 358,725.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,186.20 : 838,123.20 = 239,337.45 : x
  2. Step 2: Convert to fraction form
    559,186.20/838,123.20 = 239,337.45/x
  3. Step 3: Cross multiply
    559,186.20x = 838,123.20 × 239,337.45
  4. Step 4: Simplify right side
    559,186.20x = 200,594,269,473.84
  5. Step 5: Solve for x
    x = 200,594,269,473.84/559,186.20
  6. Step 6: Final answer
    x = 358,725.36

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1.5x scale

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.