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Finding the Fourth Proportional to 559,531.68, 772,153.56 and 304,882.68

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Solution

The fourth proportional to 559,531.68, 772,153.56 and 304,882.68 is: 420,738.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,531.68 : 772,153.56 = 304,882.68 : x
  2. Step 2: Convert to fraction form
    559,531.68/772,153.56 = 304,882.68/x
  3. Step 3: Cross multiply
    559,531.68x = 772,153.56 × 304,882.68
  4. Step 4: Simplify right side
    559,531.68x = 235,416,246,744.34
  5. Step 5: Solve for x
    x = 235,416,246,744.34/559,531.68
  6. Step 6: Final answer
    x = 420,738.01

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Double scale
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Similar ratio
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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.