Home / 526,822.81-727,017.79-285,105.42

Finding the Fourth Proportional to 526,822.81, 727,017.79 and 285,105.42

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Solution

The fourth proportional to 526,822.81, 727,017.79 and 285,105.42 is: 393,446.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,822.81 : 727,017.79 = 285,105.42 : x
  2. Step 2: Convert to fraction form
    526,822.81/727,017.79 = 285,105.42/x
  3. Step 3: Cross multiply
    526,822.81x = 727,017.79 × 285,105.42
  4. Step 4: Simplify right side
    526,822.81x = 207,276,709,443.10
  5. Step 5: Solve for x
    x = 207,276,709,443.10/526,822.81
  6. Step 6: Final answer
    x = 393,446.73

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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.