Home / 344,570.20-515,834.70-256,215.40

Finding the Fourth Proportional to 344,570.20, 515,834.70 and 256,215.40

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Solution

The fourth proportional to 344,570.20, 515,834.70 and 256,215.40 is: 383,564.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    344,570.20 : 515,834.70 = 256,215.40 : x
  2. Step 2: Convert to fraction form
    344,570.20/515,834.70 = 256,215.40/x
  3. Step 3: Cross multiply
    344,570.20x = 515,834.70 × 256,215.40
  4. Step 4: Simplify right side
    344,570.20x = 132,164,793,994.38
  5. Step 5: Solve for x
    x = 132,164,793,994.38/344,570.20
  6. Step 6: Final answer
    x = 383,564.20

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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.