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Finding the Fourth Proportional to 756,545.76, 1,044,001.74 and 412,374.12

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Solution

The fourth proportional to 756,545.76, 1,044,001.74 and 412,374.12 is: 569,059.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    756,545.76 : 1,044,001.74 = 412,374.12 : x
  2. Step 2: Convert to fraction form
    756,545.76/1,044,001.74 = 412,374.12/x
  3. Step 3: Cross multiply
    756,545.76x = 1,044,001.74 × 412,374.12
  4. Step 4: Simplify right side
    756,545.76x = 430,519,298,810.97
  5. Step 5: Solve for x
    x = 430,519,298,810.97/756,545.76
  6. Step 6: Final answer
    x = 569,059.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.