Home / 719,307.53-992,573.66-396,996.85

Finding the Fourth Proportional to 719,307.53, 992,573.66 and 396,996.85

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Solution

The fourth proportional to 719,307.53, 992,573.66 and 396,996.85 is: 547,816.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    719,307.53 : 992,573.66 = 396,996.85 : x
  2. Step 2: Convert to fraction form
    719,307.53/992,573.66 = 396,996.85/x
  3. Step 3: Cross multiply
    719,307.53x = 992,573.66 × 396,996.85
  4. Step 4: Simplify right side
    719,307.53x = 394,048,614,924.03
  5. Step 5: Solve for x
    x = 394,048,614,924.03/719,307.53
  6. Step 6: Final answer
    x = 547,816.62

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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.