Home / 527,297.45-727,666.86-285,574.50

Finding the Fourth Proportional to 527,297.45, 727,666.86 and 285,574.50

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Solution

The fourth proportional to 527,297.45, 727,666.86 and 285,574.50 is: 394,090.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,297.45 : 727,666.86 = 285,574.50 : x
  2. Step 2: Convert to fraction form
    527,297.45/727,666.86 = 285,574.50/x
  3. Step 3: Cross multiply
    527,297.45x = 727,666.86 × 285,574.50
  4. Step 4: Simplify right side
    527,297.45x = 207,803,099,711.07
  5. Step 5: Solve for x
    x = 207,803,099,711.07/527,297.45
  6. Step 6: Final answer
    x = 394,090.85

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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.