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Finding the Fourth Proportional to 718,807.22, 992,272.71 and 464,282.54

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Solution

The fourth proportional to 718,807.22, 992,272.71 and 464,282.54 is: 640,915.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    718,807.22 : 992,272.71 = 464,282.54 : x
  2. Step 2: Convert to fraction form
    718,807.22/992,272.71 = 464,282.54/x
  3. Step 3: Cross multiply
    718,807.22x = 992,272.71 × 464,282.54
  4. Step 4: Simplify right side
    718,807.22x = 460,694,894,171.48
  5. Step 5: Solve for x
    x = 460,694,894,171.48/718,807.22
  6. Step 6: Final answer
    x = 640,915.79

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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.