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Finding the Fourth Proportional to 888,980.19, 1,224,330.98 and 768,082.83

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Solution

The fourth proportional to 888,980.19, 1,224,330.98 and 768,082.83 is: 1,057,827.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    888,980.19 : 1,224,330.98 = 768,082.83 : x
  2. Step 2: Convert to fraction form
    888,980.19/1,224,330.98 = 768,082.83/x
  3. Step 3: Cross multiply
    888,980.19x = 1,224,330.98 × 768,082.83
  4. Step 4: Simplify right side
    888,980.19x = 940,387,600,134.66
  5. Step 5: Solve for x
    x = 940,387,600,134.66/888,980.19
  6. Step 6: Final answer
    x = 1,057,827.40

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.