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Finding the Fourth Proportional to 906,488.80, 1,359,888.11 and 373,718.59

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Solution

The fourth proportional to 906,488.80, 1,359,888.11 and 373,718.59 is: 560,641.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    906,488.80 : 1,359,888.11 = 373,718.59 : x
  2. Step 2: Convert to fraction form
    906,488.80/1,359,888.11 = 373,718.59/x
  3. Step 3: Cross multiply
    906,488.80x = 1,359,888.11 × 373,718.59
  4. Step 4: Simplify right side
    906,488.80x = 508,215,463,160.10
  5. Step 5: Solve for x
    x = 508,215,463,160.10/906,488.80
  6. Step 6: Final answer
    x = 560,641.75

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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.