Home / 687,928.85-949,309.86-382,024.61

Finding the Fourth Proportional to 687,928.85, 949,309.86 and 382,024.61

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Solution

The fourth proportional to 687,928.85, 949,309.86 and 382,024.61 is: 527,176.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    687,928.85 : 949,309.86 = 382,024.61 : x
  2. Step 2: Convert to fraction form
    687,928.85/949,309.86 = 382,024.61/x
  3. Step 3: Cross multiply
    687,928.85x = 949,309.86 × 382,024.61
  4. Step 4: Simplify right side
    687,928.85x = 362,659,724,289.11
  5. Step 5: Solve for x
    x = 362,659,724,289.11/687,928.85
  6. Step 6: Final answer
    x = 527,176.21

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1.5x scale

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.