Home / 865,759.20-1,298,638.80-655,807.20

Finding the Fourth Proportional to 865,759.20, 1,298,638.80 and 655,807.20

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Solution

The fourth proportional to 865,759.20, 1,298,638.80 and 655,807.20 is: 983,710.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    865,759.20 : 1,298,638.80 = 655,807.20 : x
  2. Step 2: Convert to fraction form
    865,759.20/1,298,638.80 = 655,807.20/x
  3. Step 3: Cross multiply
    865,759.20x = 1,298,638.80 × 655,807.20
  4. Step 4: Simplify right side
    865,759.20x = 851,656,675,239.36
  5. Step 5: Solve for x
    x = 851,656,675,239.36/865,759.20
  6. Step 6: Final answer
    x = 983,710.80

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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.