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Finding the Fourth Proportional to 718,996.67, 992,574.95 and 447,152.13

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Solution

The fourth proportional to 718,996.67, 992,574.95 and 447,152.13 is: 617,293.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    718,996.67 : 992,574.95 = 447,152.13 : x
  2. Step 2: Convert to fraction form
    718,996.67/992,574.95 = 447,152.13/x
  3. Step 3: Cross multiply
    718,996.67x = 992,574.95 × 447,152.13
  4. Step 4: Simplify right side
    718,996.67x = 443,832,000,841.38
  5. Step 5: Solve for x
    x = 443,832,000,841.38/718,996.67
  6. Step 6: Final answer
    x = 617,293.54

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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.