Home / 527,329.36-727,710.80-285,606.40

Finding the Fourth Proportional to 527,329.36, 727,710.80 and 285,606.40

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Solution

The fourth proportional to 527,329.36, 727,710.80 and 285,606.40 is: 394,134.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,329.36 : 727,710.80 = 285,606.40 : x
  2. Step 2: Convert to fraction form
    527,329.36/727,710.80 = 285,606.40/x
  3. Step 3: Cross multiply
    527,329.36x = 727,710.80 × 285,606.40
  4. Step 4: Simplify right side
    527,329.36x = 207,838,861,829.12
  5. Step 5: Solve for x
    x = 207,838,861,829.12/527,329.36
  6. Step 6: Final answer
    x = 394,134.82

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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.