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Finding the Fourth Proportional to 927,737.10, 1,391,605.65 and 828,009.90

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Solution

The fourth proportional to 927,737.10, 1,391,605.65 and 828,009.90 is: 1,242,014.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    927,737.10 : 1,391,605.65 = 828,009.90 : x
  2. Step 2: Convert to fraction form
    927,737.10/1,391,605.65 = 828,009.90/x
  3. Step 3: Cross multiply
    927,737.10x = 1,391,605.65 × 828,009.90
  4. Step 4: Simplify right side
    927,737.10x = 1,152,263,255,095.94
  5. Step 5: Solve for x
    x = 1,152,263,255,095.94/927,737.10
  6. Step 6: Final answer
    x = 1,242,014.85

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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.