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Finding the Fourth Proportional to 520,925.44, 781,506 and 165,959.68

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Solution

The fourth proportional to 520,925.44, 781,506 and 165,959.68 is: 248,977.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,925.44 : 781,506 = 165,959.68 : x
  2. Step 2: Convert to fraction form
    520,925.44/781,506 = 165,959.68/x
  3. Step 3: Cross multiply
    520,925.44x = 781,506 × 165,959.68
  4. Step 4: Simplify right side
    520,925.44x = 129,698,485,678.08
  5. Step 5: Solve for x
    x = 129,698,485,678.08/520,925.44
  6. Step 6: Final answer
    x = 248,977.06

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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.