Home / 527,266.49-727,623.90-285,543.45

Finding the Fourth Proportional to 527,266.49, 727,623.90 and 285,543.45

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Solution

The fourth proportional to 527,266.49, 727,623.90 and 285,543.45 is: 394,047.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,266.49 : 727,623.90 = 285,543.45 : x
  2. Step 2: Convert to fraction form
    527,266.49/727,623.90 = 285,543.45/x
  3. Step 3: Cross multiply
    527,266.49x = 727,623.90 × 285,543.45
  4. Step 4: Simplify right side
    527,266.49x = 207,768,238,708.46
  5. Step 5: Solve for x
    x = 207,768,238,708.46/527,266.49
  6. Step 6: Final answer
    x = 394,047.88

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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.