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Finding the Fourth Proportional to 865,969.87, 1,195,017.78 and 484,032.19

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Solution

The fourth proportional to 865,969.87, 1,195,017.78 and 484,032.19 is: 667,952.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    865,969.87 : 1,195,017.78 = 484,032.19 : x
  2. Step 2: Convert to fraction form
    865,969.87/1,195,017.78 = 484,032.19/x
  3. Step 3: Cross multiply
    865,969.87x = 1,195,017.78 × 484,032.19
  4. Step 4: Simplify right side
    865,969.87x = 578,427,072,849.23
  5. Step 5: Solve for x
    x = 578,427,072,849.23/865,969.87
  6. Step 6: Final answer
    x = 667,952.89

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1.5x scale

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.