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Finding the Fourth Proportional to 544,016.20, 816,101.10 and 170,000.20

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Solution

The fourth proportional to 544,016.20, 816,101.10 and 170,000.20 is: 255,024.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    544,016.20 : 816,101.10 = 170,000.20 : x
  2. Step 2: Convert to fraction form
    544,016.20/816,101.10 = 170,000.20/x
  3. Step 3: Cross multiply
    544,016.20x = 816,101.10 × 170,000.20
  4. Step 4: Simplify right side
    544,016.20x = 138,737,350,220.22
  5. Step 5: Solve for x
    x = 138,737,350,220.22/544,016.20
  6. Step 6: Final answer
    x = 255,024.30

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Half scale
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Double scale
Find fourth proportional to 544,017.20, 816,102.60 and 170,001.20
Similar ratio
Find fourth proportional to 816,024.30, 1,224,151.65 and 255,000.30
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.