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Finding the Fourth Proportional to 917,180.19, 1,369,594.20 and 749,034.30

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Solution

The fourth proportional to 917,180.19, 1,369,594.20 and 749,034.30 is: 1,118,507.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    917,180.19 : 1,369,594.20 = 749,034.30 : x
  2. Step 2: Convert to fraction form
    917,180.19/1,369,594.20 = 749,034.30/x
  3. Step 3: Cross multiply
    917,180.19x = 1,369,594.20 × 749,034.30
  4. Step 4: Simplify right side
    917,180.19x = 1,025,873,032,881.06
  5. Step 5: Solve for x
    x = 1,025,873,032,881.06/917,180.19
  6. Step 6: Final answer
    x = 1,118,507.62

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.