Home / 527,284.34-727,648.28-285,561.32

Finding the Fourth Proportional to 527,284.34, 727,648.28 and 285,561.32

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Solution

The fourth proportional to 527,284.34, 727,648.28 and 285,561.32 is: 394,072.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,284.34 : 727,648.28 = 285,561.32 : x
  2. Step 2: Convert to fraction form
    527,284.34/727,648.28 = 285,561.32/x
  3. Step 3: Cross multiply
    527,284.34x = 727,648.28 × 285,561.32
  4. Step 4: Simplify right side
    527,284.34x = 207,788,203,332.53
  5. Step 5: Solve for x
    x = 207,788,203,332.53/527,284.34
  6. Step 6: Final answer
    x = 394,072.40

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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.