Home / 438,454.36-605,038.44-247,441.78

Finding the Fourth Proportional to 438,454.36, 605,038.44 and 247,441.78

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Solution

The fourth proportional to 438,454.36, 605,038.44 and 247,441.78 is: 341,453.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,454.36 : 605,038.44 = 247,441.78 : x
  2. Step 2: Convert to fraction form
    438,454.36/605,038.44 = 247,441.78/x
  3. Step 3: Cross multiply
    438,454.36x = 605,038.44 × 247,441.78
  4. Step 4: Simplify right side
    438,454.36x = 149,711,788,562.02
  5. Step 5: Solve for x
    x = 149,711,788,562.02/438,454.36
  6. Step 6: Final answer
    x = 341,453.53

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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.