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Finding the Fourth Proportional to 756,872.76, 1,044,462.06 and 417,340.92

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Solution

The fourth proportional to 756,872.76, 1,044,462.06 and 417,340.92 is: 575,918.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    756,872.76 : 1,044,462.06 = 417,340.92 : x
  2. Step 2: Convert to fraction form
    756,872.76/1,044,462.06 = 417,340.92/x
  3. Step 3: Cross multiply
    756,872.76x = 1,044,462.06 × 417,340.92
  4. Step 4: Simplify right side
    756,872.76x = 435,896,757,025.50
  5. Step 5: Solve for x
    x = 435,896,757,025.50/756,872.76
  6. Step 6: Final answer
    x = 575,918.15

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Double scale
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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.