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Finding the Fourth Proportional to 551,593.32, 761,231.30 and 415,386.96

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Solution

The fourth proportional to 551,593.32, 761,231.30 and 415,386.96 is: 573,258.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,593.32 : 761,231.30 = 415,386.96 : x
  2. Step 2: Convert to fraction form
    551,593.32/761,231.30 = 415,386.96/x
  3. Step 3: Cross multiply
    551,593.32x = 761,231.30 × 415,386.96
  4. Step 4: Simplify right side
    551,593.32x = 316,205,553,486.91
  5. Step 5: Solve for x
    x = 316,205,553,486.91/551,593.32
  6. Step 6: Final answer
    x = 573,258.49

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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.