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Finding the Fourth Proportional to 922,470.56, 1,384,157.84 and 619,055.92

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Solution

The fourth proportional to 922,470.56, 1,384,157.84 and 619,055.92 is: 928,887.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    922,470.56 : 1,384,157.84 = 619,055.92 : x
  2. Step 2: Convert to fraction form
    922,470.56/1,384,157.84 = 619,055.92/x
  3. Step 3: Cross multiply
    922,470.56x = 1,384,157.84 × 619,055.92
  4. Step 4: Simplify right side
    922,470.56x = 856,871,105,066.41
  5. Step 5: Solve for x
    x = 856,871,105,066.41/922,470.56
  6. Step 6: Final answer
    x = 928,887.21

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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.