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Finding the Fourth Proportional to 475,718.80, 656,491.62 and 260,862.52

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Solution

The fourth proportional to 475,718.80, 656,491.62 and 260,862.52 is: 359,990.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    475,718.80 : 656,491.62 = 260,862.52 : x
  2. Step 2: Convert to fraction form
    475,718.80/656,491.62 = 260,862.52/x
  3. Step 3: Cross multiply
    475,718.80x = 656,491.62 × 260,862.52
  4. Step 4: Simplify right side
    475,718.80x = 171,254,058,352.08
  5. Step 5: Solve for x
    x = 171,254,058,352.08/475,718.80
  6. Step 6: Final answer
    x = 359,990.10

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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.