Home / 527,020.57-727,287.55-285,303.07

Finding the Fourth Proportional to 527,020.57, 727,287.55 and 285,303.07

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Solution

The fourth proportional to 527,020.57, 727,287.55 and 285,303.07 is: 393,717.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,020.57 : 727,287.55 = 285,303.07 : x
  2. Step 2: Convert to fraction form
    527,020.57/727,287.55 = 285,303.07/x
  3. Step 3: Cross multiply
    527,020.57x = 727,287.55 × 285,303.07
  4. Step 4: Simplify right side
    527,020.57x = 207,497,368,256.30
  5. Step 5: Solve for x
    x = 207,497,368,256.30/527,020.57
  6. Step 6: Final answer
    x = 393,717.78

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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.