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Finding the Fourth Proportional to 293,887.70, 440,831.55 and 153,689.30

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Solution

The fourth proportional to 293,887.70, 440,831.55 and 153,689.30 is: 230,533.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    293,887.70 : 440,831.55 = 153,689.30 : x
  2. Step 2: Convert to fraction form
    293,887.70/440,831.55 = 153,689.30/x
  3. Step 3: Cross multiply
    293,887.70x = 440,831.55 × 153,689.30
  4. Step 4: Simplify right side
    293,887.70x = 67,751,092,337.42
  5. Step 5: Solve for x
    x = 67,751,092,337.42/293,887.70
  6. Step 6: Final answer
    x = 230,533.95

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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.