Home / 807,999.59-1,115,005.26-440,468.78

Finding the Fourth Proportional to 807,999.59, 1,115,005.26 and 440,468.78

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Solution

The fourth proportional to 807,999.59, 1,115,005.26 and 440,468.78 is: 607,828.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    807,999.59 : 1,115,005.26 = 440,468.78 : x
  2. Step 2: Convert to fraction form
    807,999.59/1,115,005.26 = 440,468.78/x
  3. Step 3: Cross multiply
    807,999.59x = 1,115,005.26 × 440,468.78
  4. Step 4: Simplify right side
    807,999.59x = 491,125,000,990.76
  5. Step 5: Solve for x
    x = 491,125,000,990.76/807,999.59
  6. Step 6: Final answer
    x = 607,828.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.