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Finding the Fourth Proportional to 451,523.66, 623,130.66 and 250,319.66

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Solution

The fourth proportional to 451,523.66, 623,130.66 and 250,319.66 is: 345,456.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,523.66 : 623,130.66 = 250,319.66 : x
  2. Step 2: Convert to fraction form
    451,523.66/623,130.66 = 250,319.66/x
  3. Step 3: Cross multiply
    451,523.66x = 623,130.66 × 250,319.66
  4. Step 4: Simplify right side
    451,523.66x = 155,981,851,831.12
  5. Step 5: Solve for x
    x = 155,981,851,831.12/451,523.66
  6. Step 6: Final answer
    x = 345,456.66

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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.