Home / 657,766.12-986,561.54-208,532.40

Finding the Fourth Proportional to 657,766.12, 986,561.54 and 208,532.40

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Solution

The fourth proportional to 657,766.12, 986,561.54 and 208,532.40 is: 312,770.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,766.12 : 986,561.54 = 208,532.40 : x
  2. Step 2: Convert to fraction form
    657,766.12/986,561.54 = 208,532.40/x
  3. Step 3: Cross multiply
    657,766.12x = 986,561.54 × 208,532.40
  4. Step 4: Simplify right side
    657,766.12x = 205,730,045,683.90
  5. Step 5: Solve for x
    x = 205,730,045,683.90/657,766.12
  6. Step 6: Final answer
    x = 312,770.82

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1.5x scale

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.