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Finding the Fourth Proportional to 461,350.40, 690,489.60 and 334,630.40

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Solution

The fourth proportional to 461,350.40, 690,489.60 and 334,630.40 is: 500,831.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    461,350.40 : 690,489.60 = 334,630.40 : x
  2. Step 2: Convert to fraction form
    461,350.40/690,489.60 = 334,630.40/x
  3. Step 3: Cross multiply
    461,350.40x = 690,489.60 × 334,630.40
  4. Step 4: Simplify right side
    461,350.40x = 231,058,811,043.84
  5. Step 5: Solve for x
    x = 231,058,811,043.84/461,350.40
  6. Step 6: Final answer
    x = 500,831.50

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Double scale
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Similar ratio
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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.