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Finding the Fourth Proportional to 487,713.40, 730,986.90 and 250,934.20

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Solution

The fourth proportional to 487,713.40, 730,986.90 and 250,934.20 is: 376,101.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,713.40 : 730,986.90 = 250,934.20 : x
  2. Step 2: Convert to fraction form
    487,713.40/730,986.90 = 250,934.20/x
  3. Step 3: Cross multiply
    487,713.40x = 730,986.90 × 250,934.20
  4. Step 4: Simplify right side
    487,713.40x = 183,429,612,961.98
  5. Step 5: Solve for x
    x = 183,429,612,961.98/487,713.40
  6. Step 6: Final answer
    x = 376,101.24

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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.