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Finding the Fourth Proportional to 522,007.70, 783,011.55 and 403,763.90

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Solution

The fourth proportional to 522,007.70, 783,011.55 and 403,763.90 is: 605,645.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    522,007.70 : 783,011.55 = 403,763.90 : x
  2. Step 2: Convert to fraction form
    522,007.70/783,011.55 = 403,763.90/x
  3. Step 3: Cross multiply
    522,007.70x = 783,011.55 × 403,763.90
  4. Step 4: Simplify right side
    522,007.70x = 316,151,797,173.05
  5. Step 5: Solve for x
    x = 316,151,797,173.05/522,007.70
  6. Step 6: Final answer
    x = 605,645.85

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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.