Home / 644,721.80-967,082.70-617,419.40

Finding the Fourth Proportional to 644,721.80, 967,082.70 and 617,419.40

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Solution

The fourth proportional to 644,721.80, 967,082.70 and 617,419.40 is: 926,129.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    644,721.80 : 967,082.70 = 617,419.40 : x
  2. Step 2: Convert to fraction form
    644,721.80/967,082.70 = 617,419.40/x
  3. Step 3: Cross multiply
    644,721.80x = 967,082.70 × 617,419.40
  4. Step 4: Simplify right side
    644,721.80x = 597,095,620,384.38
  5. Step 5: Solve for x
    x = 597,095,620,384.38/644,721.80
  6. Step 6: Final answer
    x = 926,129.10

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Similar ratio
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1.5x scale

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.