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Finding the Fourth Proportional to 534,681.20, 802,021.80 and 324,210.80

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Solution

The fourth proportional to 534,681.20, 802,021.80 and 324,210.80 is: 486,316.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    534,681.20 : 802,021.80 = 324,210.80 : x
  2. Step 2: Convert to fraction form
    534,681.20/802,021.80 = 324,210.80/x
  3. Step 3: Cross multiply
    534,681.20x = 802,021.80 × 324,210.80
  4. Step 4: Simplify right side
    534,681.20x = 260,024,129,395.44
  5. Step 5: Solve for x
    x = 260,024,129,395.44/534,681.20
  6. Step 6: Final answer
    x = 486,316.20

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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.