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Finding the Fourth Proportional to 611,996.20, 917,994.30 and 594,500.20

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Solution

The fourth proportional to 611,996.20, 917,994.30 and 594,500.20 is: 891,750.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,996.20 : 917,994.30 = 594,500.20 : x
  2. Step 2: Convert to fraction form
    611,996.20/917,994.30 = 594,500.20/x
  3. Step 3: Cross multiply
    611,996.20x = 917,994.30 × 594,500.20
  4. Step 4: Simplify right side
    611,996.20x = 545,747,794,948.86
  5. Step 5: Solve for x
    x = 545,747,794,948.86/611,996.20
  6. Step 6: Final answer
    x = 891,750.30

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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.