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Finding the Fourth Proportional to 359,987.64, 496,915.50 and 216,753.72

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Solution

The fourth proportional to 359,987.64, 496,915.50 and 216,753.72 is: 299,199.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,987.64 : 496,915.50 = 216,753.72 : x
  2. Step 2: Convert to fraction form
    359,987.64/496,915.50 = 216,753.72/x
  3. Step 3: Cross multiply
    359,987.64x = 496,915.50 × 216,753.72
  4. Step 4: Simplify right side
    359,987.64x = 107,708,283,150.66
  5. Step 5: Solve for x
    x = 107,708,283,150.66/359,987.64
  6. Step 6: Final answer
    x = 299,199.95

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1.5x scale

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.