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Finding the Fourth Proportional to 532,830.90, 799,246.35 and 384,114.90

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Solution

The fourth proportional to 532,830.90, 799,246.35 and 384,114.90 is: 576,172.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    532,830.90 : 799,246.35 = 384,114.90 : x
  2. Step 2: Convert to fraction form
    532,830.90/799,246.35 = 384,114.90/x
  3. Step 3: Cross multiply
    532,830.90x = 799,246.35 × 384,114.90
  4. Step 4: Simplify right side
    532,830.90x = 307,002,431,805.62
  5. Step 5: Solve for x
    x = 307,002,431,805.62/532,830.90
  6. Step 6: Final answer
    x = 576,172.35

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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.