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Finding the Fourth Proportional to 532,409.20, 798,613.80 and 322,457.20

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Solution

The fourth proportional to 532,409.20, 798,613.80 and 322,457.20 is: 483,685.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    532,409.20 : 798,613.80 = 322,457.20 : x
  2. Step 2: Convert to fraction form
    532,409.20/798,613.80 = 322,457.20/x
  3. Step 3: Cross multiply
    532,409.20x = 798,613.80 × 322,457.20
  4. Step 4: Simplify right side
    532,409.20x = 257,518,769,829.36
  5. Step 5: Solve for x
    x = 257,518,769,829.36/532,409.20
  6. Step 6: Final answer
    x = 483,685.80

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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.