Home / 527,528.16-727,987.50-285,816.87

Finding the Fourth Proportional to 527,528.16, 727,987.50 and 285,816.87

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Solution

The fourth proportional to 527,528.16, 727,987.50 and 285,816.87 is: 394,426.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,528.16 : 727,987.50 = 285,816.87 : x
  2. Step 2: Convert to fraction form
    527,528.16/727,987.50 = 285,816.87/x
  3. Step 3: Cross multiply
    527,528.16x = 727,987.50 × 285,816.87
  4. Step 4: Simplify right side
    527,528.16x = 208,071,108,649.13
  5. Step 5: Solve for x
    x = 208,071,108,649.13/527,528.16
  6. Step 6: Final answer
    x = 394,426.54

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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.