Home / 627,082.61-865,385.39-355,206.95

Finding the Fourth Proportional to 627,082.61, 865,385.39 and 355,206.95

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Solution

The fourth proportional to 627,082.61, 865,385.39 and 355,206.95 is: 490,192.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,082.61 : 865,385.39 = 355,206.95 : x
  2. Step 2: Convert to fraction form
    627,082.61/865,385.39 = 355,206.95/x
  3. Step 3: Cross multiply
    627,082.61x = 865,385.39 × 355,206.95
  4. Step 4: Simplify right side
    627,082.61x = 307,390,898,853.50
  5. Step 5: Solve for x
    x = 307,390,898,853.50/627,082.61
  6. Step 6: Final answer
    x = 490,192.04

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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.