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Finding the Fourth Proportional to 922,078.40, 1,383,117.60 and 904,363.70

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Solution

The fourth proportional to 922,078.40, 1,383,117.60 and 904,363.70 is: 1,356,545.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    922,078.40 : 1,383,117.60 = 904,363.70 : x
  2. Step 2: Convert to fraction form
    922,078.40/1,383,117.60 = 904,363.70/x
  3. Step 3: Cross multiply
    922,078.40x = 1,383,117.60 × 904,363.70
  4. Step 4: Simplify right side
    922,078.40x = 1,250,841,350,271.12
  5. Step 5: Solve for x
    x = 1,250,841,350,271.12/922,078.40
  6. Step 6: Final answer
    x = 1,356,545.55

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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.