Home / 801,035.39-1,105,456.96-438,459.55

Finding the Fourth Proportional to 801,035.39, 1,105,456.96 and 438,459.55

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Solution

The fourth proportional to 801,035.39, 1,105,456.96 and 438,459.55 is: 605,089.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    801,035.39 : 1,105,456.96 = 438,459.55 : x
  2. Step 2: Convert to fraction form
    801,035.39/1,105,456.96 = 438,459.55/x
  3. Step 3: Cross multiply
    801,035.39x = 1,105,456.96 × 438,459.55
  4. Step 4: Simplify right side
    801,035.39x = 484,698,154,602.53
  5. Step 5: Solve for x
    x = 484,698,154,602.53/801,035.39
  6. Step 6: Final answer
    x = 605,089.56

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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.