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Finding the Fourth Proportional to 528,992.20, 793,488.28 and 155,015.20

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Solution

The fourth proportional to 528,992.20, 793,488.28 and 155,015.20 is: 232,522.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,992.20 : 793,488.28 = 155,015.20 : x
  2. Step 2: Convert to fraction form
    528,992.20/793,488.28 = 155,015.20/x
  3. Step 3: Cross multiply
    528,992.20x = 793,488.28 × 155,015.20
  4. Step 4: Simplify right side
    528,992.20x = 123,002,744,421.86
  5. Step 5: Solve for x
    x = 123,002,744,421.86/528,992.20
  6. Step 6: Final answer
    x = 232,522.79

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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.