Home / 657,262.20-986,282.10-479,321.40

Finding the Fourth Proportional to 657,262.20, 986,282.10 and 479,321.40

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Solution

The fourth proportional to 657,262.20, 986,282.10 and 479,321.40 is: 719,265.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,262.20 : 986,282.10 = 479,321.40 : x
  2. Step 2: Convert to fraction form
    657,262.20/986,282.10 = 479,321.40/x
  3. Step 3: Cross multiply
    657,262.20x = 986,282.10 × 479,321.40
  4. Step 4: Simplify right side
    657,262.20x = 472,746,116,966.94
  5. Step 5: Solve for x
    x = 472,746,116,966.94/657,262.20
  6. Step 6: Final answer
    x = 719,265.64

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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.