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Finding the Fourth Proportional to 1,092,927.60, 1,639,391.40 and 736,009.20

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Solution

The fourth proportional to 1,092,927.60, 1,639,391.40 and 736,009.20 is: 1,104,013.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,092,927.60 : 1,639,391.40 = 736,009.20 : x
  2. Step 2: Convert to fraction form
    1,092,927.60/1,639,391.40 = 736,009.20/x
  3. Step 3: Cross multiply
    1,092,927.60x = 1,639,391.40 × 736,009.20
  4. Step 4: Simplify right side
    1,092,927.60x = 1,206,607,152,800.88
  5. Step 5: Solve for x
    x = 1,206,607,152,800.88/1,092,927.60
  6. Step 6: Final answer
    x = 1,104,013.80

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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.