Home / 716,182.94-988,332.82-393,914.90

Finding the Fourth Proportional to 716,182.94, 988,332.82 and 393,914.90

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Solution

The fourth proportional to 716,182.94, 988,332.82 and 393,914.90 is: 543,602.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    716,182.94 : 988,332.82 = 393,914.90 : x
  2. Step 2: Convert to fraction form
    716,182.94/988,332.82 = 393,914.90/x
  3. Step 3: Cross multiply
    716,182.94x = 988,332.82 × 393,914.90
  4. Step 4: Simplify right side
    716,182.94x = 389,319,023,957.02
  5. Step 5: Solve for x
    x = 389,319,023,957.02/716,182.94
  6. Step 6: Final answer
    x = 543,602.76

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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.