Home / 527,090.73-727,391.12-285,378.36

Finding the Fourth Proportional to 527,090.73, 727,391.12 and 285,378.36

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Solution

The fourth proportional to 527,090.73, 727,391.12 and 285,378.36 is: 393,825.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,090.73 : 727,391.12 = 285,378.36 : x
  2. Step 2: Convert to fraction form
    527,090.73/727,391.12 = 285,378.36/x
  3. Step 3: Cross multiply
    527,090.73x = 727,391.12 × 285,378.36
  4. Step 4: Simplify right side
    527,090.73x = 207,581,683,477.27
  5. Step 5: Solve for x
    x = 207,581,683,477.27/527,090.73
  6. Step 6: Final answer
    x = 393,825.34

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1.5x scale

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.