Home / 515,848.20-773,772.30-397,750.20

Finding the Fourth Proportional to 515,848.20, 773,772.30 and 397,750.20

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Solution

The fourth proportional to 515,848.20, 773,772.30 and 397,750.20 is: 596,625.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,848.20 : 773,772.30 = 397,750.20 : x
  2. Step 2: Convert to fraction form
    515,848.20/773,772.30 = 397,750.20/x
  3. Step 3: Cross multiply
    515,848.20x = 773,772.30 × 397,750.20
  4. Step 4: Simplify right side
    515,848.20x = 307,768,087,079.46
  5. Step 5: Solve for x
    x = 307,768,087,079.46/515,848.20
  6. Step 6: Final answer
    x = 596,625.30

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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.