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Finding the Fourth Proportional to 522,061.20, 783,199.80 and 297,529.20

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Solution

The fourth proportional to 522,061.20, 783,199.80 and 297,529.20 is: 446,355.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    522,061.20 : 783,199.80 = 297,529.20 : x
  2. Step 2: Convert to fraction form
    522,061.20/783,199.80 = 297,529.20/x
  3. Step 3: Cross multiply
    522,061.20x = 783,199.80 × 297,529.20
  4. Step 4: Simplify right side
    522,061.20x = 233,024,809,934.16
  5. Step 5: Solve for x
    x = 233,024,809,934.16/522,061.20
  6. Step 6: Final answer
    x = 446,355.35

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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.