Home / 801,678.80-1,106,317.02-439,108.73

Finding the Fourth Proportional to 801,678.80, 1,106,317.02 and 439,108.73

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Solution

The fourth proportional to 801,678.80, 1,106,317.02 and 439,108.73 is: 605,970.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    801,678.80 : 1,106,317.02 = 439,108.73 : x
  2. Step 2: Convert to fraction form
    801,678.80/1,106,317.02 = 439,108.73/x
  3. Step 3: Cross multiply
    801,678.80x = 1,106,317.02 × 439,108.73
  4. Step 4: Simplify right side
    801,678.80x = 485,793,459,423.36
  5. Step 5: Solve for x
    x = 485,793,459,423.36/801,678.80
  6. Step 6: Final answer
    x = 605,970.19

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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.