Home / 712,077.08-982,667.64-389,806.92

Finding the Fourth Proportional to 712,077.08, 982,667.64 and 389,806.92

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Solution

The fourth proportional to 712,077.08, 982,667.64 and 389,806.92 is: 537,934.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    712,077.08 : 982,667.64 = 389,806.92 : x
  2. Step 2: Convert to fraction form
    712,077.08/982,667.64 = 389,806.92/x
  3. Step 3: Cross multiply
    712,077.08x = 982,667.64 × 389,806.92
  4. Step 4: Simplify right side
    712,077.08x = 383,050,646,132.07
  5. Step 5: Solve for x
    x = 383,050,646,132.07/712,077.08
  6. Step 6: Final answer
    x = 537,934.25

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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.