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Finding the Fourth Proportional to 659,927.22, 910,694.25 and 358,121.22

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Solution

The fourth proportional to 659,927.22, 910,694.25 and 358,121.22 is: 494,204.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,927.22 : 910,694.25 = 358,121.22 : x
  2. Step 2: Convert to fraction form
    659,927.22/910,694.25 = 358,121.22/x
  3. Step 3: Cross multiply
    659,927.22x = 910,694.25 × 358,121.22
  4. Step 4: Simplify right side
    659,927.22x = 326,138,935,856.99
  5. Step 5: Solve for x
    x = 326,138,935,856.99/659,927.22
  6. Step 6: Final answer
    x = 494,204.40

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Double scale
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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.