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Finding the Fourth Proportional to 578,714.76, 868,130.01 and 199,585.58

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Solution

The fourth proportional to 578,714.76, 868,130.01 and 199,585.58 is: 299,398.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,714.76 : 868,130.01 = 199,585.58 : x
  2. Step 2: Convert to fraction form
    578,714.76/868,130.01 = 199,585.58/x
  3. Step 3: Cross multiply
    578,714.76x = 868,130.01 × 199,585.58
  4. Step 4: Simplify right side
    578,714.76x = 173,266,227,220.61
  5. Step 5: Solve for x
    x = 173,266,227,220.61/578,714.76
  6. Step 6: Final answer
    x = 299,398.32

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.