Home / 354,375,768.40-531,563,652.60-217,617,701.20

Finding the Fourth Proportional to 354,375,768.40, 531,563,652.60 and 217,617,701.20

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Solution

The fourth proportional to 354,375,768.40, 531,563,652.60 and 217,617,701.20 is: 326,426,551.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,375,768.40 : 531,563,652.60 = 217,617,701.20 : x
  2. Step 2: Convert to fraction form
    354,375,768.40/531,563,652.60 = 217,617,701.20/x
  3. Step 3: Cross multiply
    354,375,768.40x = 531,563,652.60 × 217,617,701.20
  4. Step 4: Simplify right side
    354,375,768.40x = 115,677,660,120,287,408
  5. Step 5: Solve for x
    x = 115,677,660,120,287,408/354,375,768.40
  6. Step 6: Final answer
    x = 326,426,551.80

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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.