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Finding the Fourth Proportional to 869,082.40, 1,302,068.40 and 735,335.20

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Solution

The fourth proportional to 869,082.40, 1,302,068.40 and 735,335.20 is: 1,101,686.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    869,082.40 : 1,302,068.40 = 735,335.20 : x
  2. Step 2: Convert to fraction form
    869,082.40/1,302,068.40 = 735,335.20/x
  3. Step 3: Cross multiply
    869,082.40x = 1,302,068.40 × 735,335.20
  4. Step 4: Simplify right side
    869,082.40x = 957,456,727,327.68
  5. Step 5: Solve for x
    x = 957,456,727,327.68/869,082.40
  6. Step 6: Final answer
    x = 1,101,686.94

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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.