Home / 527,021.65-727,289.73-285,304.05

Finding the Fourth Proportional to 527,021.65, 727,289.73 and 285,304.05

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Solution

The fourth proportional to 527,021.65, 727,289.73 and 285,304.05 is: 393,719.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,021.65 : 727,289.73 = 285,304.05 : x
  2. Step 2: Convert to fraction form
    527,021.65/727,289.73 = 285,304.05/x
  3. Step 3: Cross multiply
    527,021.65x = 727,289.73 × 285,304.05
  4. Step 4: Simplify right side
    527,021.65x = 207,498,705,492.41
  5. Step 5: Solve for x
    x = 207,498,705,492.41/527,021.65
  6. Step 6: Final answer
    x = 393,719.51

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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.