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Finding the Fourth Proportional to 609,063.40, 913,652.70 and 165,831.40

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Solution

The fourth proportional to 609,063.40, 913,652.70 and 165,831.40 is: 248,762.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    609,063.40 : 913,652.70 = 165,831.40 : x
  2. Step 2: Convert to fraction form
    609,063.40/913,652.70 = 165,831.40/x
  3. Step 3: Cross multiply
    609,063.40x = 913,652.70 × 165,831.40
  4. Step 4: Simplify right side
    609,063.40x = 151,512,306,354.78
  5. Step 5: Solve for x
    x = 151,512,306,354.78/609,063.40
  6. Step 6: Final answer
    x = 248,762.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.