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Finding the Fourth Proportional to 424,060.56, 636,036.12 and 353,424.48

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Solution

The fourth proportional to 424,060.56, 636,036.12 and 353,424.48 is: 530,091.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,060.56 : 636,036.12 = 353,424.48 : x
  2. Step 2: Convert to fraction form
    424,060.56/636,036.12 = 353,424.48/x
  3. Step 3: Cross multiply
    424,060.56x = 636,036.12 × 353,424.48
  4. Step 4: Simplify right side
    424,060.56x = 224,790,734,972.22
  5. Step 5: Solve for x
    x = 224,790,734,972.22/424,060.56
  6. Step 6: Final answer
    x = 530,091.11

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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.