Home / 447,036.12-670,575.60-147,543.48

Finding the Fourth Proportional to 447,036.12, 670,575.60 and 147,543.48

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Solution

The fourth proportional to 447,036.12, 670,575.60 and 147,543.48 is: 221,322.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,036.12 : 670,575.60 = 147,543.48 : x
  2. Step 2: Convert to fraction form
    447,036.12/670,575.60 = 147,543.48/x
  3. Step 3: Cross multiply
    447,036.12x = 670,575.60 × 147,543.48
  4. Step 4: Simplify right side
    447,036.12x = 98,939,057,627.09
  5. Step 5: Solve for x
    x = 98,939,057,627.09/447,036.12
  6. Step 6: Final answer
    x = 221,322.29

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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.