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Finding the Fourth Proportional to 672,166.40, 927,655 and 502,105.28

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Solution

The fourth proportional to 672,166.40, 927,655 and 502,105.28 is: 692,954.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,166.40 : 927,655 = 502,105.28 : x
  2. Step 2: Convert to fraction form
    672,166.40/927,655 = 502,105.28/x
  3. Step 3: Cross multiply
    672,166.40x = 927,655 × 502,105.28
  4. Step 4: Simplify right side
    672,166.40x = 465,780,473,518.40
  5. Step 5: Solve for x
    x = 465,780,473,518.40/672,166.40
  6. Step 6: Final answer
    x = 692,954.12

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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.