Home / 714,246.25-985,671.83-391,986.34

Finding the Fourth Proportional to 714,246.25, 985,671.83 and 391,986.34

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Solution

The fourth proportional to 714,246.25, 985,671.83 and 391,986.34 is: 540,947.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    714,246.25 : 985,671.83 = 391,986.34 : x
  2. Step 2: Convert to fraction form
    714,246.25/985,671.83 = 391,986.34/x
  3. Step 3: Cross multiply
    714,246.25x = 985,671.83 × 391,986.34
  4. Step 4: Simplify right side
    714,246.25x = 386,369,893,082.80
  5. Step 5: Solve for x
    x = 386,369,893,082.80/714,246.25
  6. Step 6: Final answer
    x = 540,947.74

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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.