Home / 826,521.20-1,238,469.60-545,710.40

Finding the Fourth Proportional to 826,521.20, 1,238,469.60 and 545,710.40

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Solution

The fourth proportional to 826,521.20, 1,238,469.60 and 545,710.40 is: 817,699.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    826,521.20 : 1,238,469.60 = 545,710.40 : x
  2. Step 2: Convert to fraction form
    826,521.20/1,238,469.60 = 545,710.40/x
  3. Step 3: Cross multiply
    826,521.20x = 1,238,469.60 × 545,710.40
  4. Step 4: Simplify right side
    826,521.20x = 675,845,740,803.84
  5. Step 5: Solve for x
    x = 675,845,740,803.84/826,521.20
  6. Step 6: Final answer
    x = 817,699.22

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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.