Home / 868,082.90-1,301,686.95-513,205.70

Finding the Fourth Proportional to 868,082.90, 1,301,686.95 and 513,205.70

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Solution

The fourth proportional to 868,082.90, 1,301,686.95 and 513,205.70 is: 769,549.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    868,082.90 : 1,301,686.95 = 513,205.70 : x
  2. Step 2: Convert to fraction form
    868,082.90/1,301,686.95 = 513,205.70/x
  3. Step 3: Cross multiply
    868,082.90x = 1,301,686.95 × 513,205.70
  4. Step 4: Simplify right side
    868,082.90x = 668,033,162,355.62
  5. Step 5: Solve for x
    x = 668,033,162,355.62/868,082.90
  6. Step 6: Final answer
    x = 769,549.96

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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.