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Finding the Fourth Proportional to 532,307.20, 798,460.80 and 322,355.20

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Solution

The fourth proportional to 532,307.20, 798,460.80 and 322,355.20 is: 483,532.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    532,307.20 : 798,460.80 = 322,355.20 : x
  2. Step 2: Convert to fraction form
    532,307.20/798,460.80 = 322,355.20/x
  3. Step 3: Cross multiply
    532,307.20x = 798,460.80 × 322,355.20
  4. Step 4: Simplify right side
    532,307.20x = 257,387,990,876.16
  5. Step 5: Solve for x
    x = 257,387,990,876.16/532,307.20
  6. Step 6: Final answer
    x = 483,532.80

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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.