Home / 521,240.94-719,277.28-288,651.17

Finding the Fourth Proportional to 521,240.94, 719,277.28 and 288,651.17

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Solution

The fourth proportional to 521,240.94, 719,277.28 and 288,651.17 is: 398,319.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,240.94 : 719,277.28 = 288,651.17 : x
  2. Step 2: Convert to fraction form
    521,240.94/719,277.28 = 288,651.17/x
  3. Step 3: Cross multiply
    521,240.94x = 719,277.28 × 288,651.17
  4. Step 4: Simplify right side
    521,240.94x = 207,620,229,502.98
  5. Step 5: Solve for x
    x = 207,620,229,502.98/521,240.94
  6. Step 6: Final answer
    x = 398,319.11

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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.