Home / 482,821.40-724,232.10-304,362.20

Finding the Fourth Proportional to 482,821.40, 724,232.10 and 304,362.20

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Solution

The fourth proportional to 482,821.40, 724,232.10 and 304,362.20 is: 456,543.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,821.40 : 724,232.10 = 304,362.20 : x
  2. Step 2: Convert to fraction form
    482,821.40/724,232.10 = 304,362.20/x
  3. Step 3: Cross multiply
    482,821.40x = 724,232.10 × 304,362.20
  4. Step 4: Simplify right side
    482,821.40x = 220,428,875,266.62
  5. Step 5: Solve for x
    x = 220,428,875,266.62/482,821.40
  6. Step 6: Final answer
    x = 456,543.30

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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.