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Finding the Fourth Proportional to 922,050.12, 1,271,713.68 and 818,792.92

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Solution

The fourth proportional to 922,050.12, 1,271,713.68 and 818,792.92 is: 1,129,298.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    922,050.12 : 1,271,713.68 = 818,792.92 : x
  2. Step 2: Convert to fraction form
    922,050.12/1,271,713.68 = 818,792.92/x
  3. Step 3: Cross multiply
    922,050.12x = 1,271,713.68 × 818,792.92
  4. Step 4: Simplify right side
    922,050.12x = 1,041,270,157,451.15
  5. Step 5: Solve for x
    x = 1,041,270,157,451.15/922,050.12
  6. Step 6: Final answer
    x = 1,129,298.87

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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.