Home / 448,019.60-672,029.40-115,595.60

Finding the Fourth Proportional to 448,019.60, 672,029.40 and 115,595.60

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Solution

The fourth proportional to 448,019.60, 672,029.40 and 115,595.60 is: 173,393.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,019.60 : 672,029.40 = 115,595.60 : x
  2. Step 2: Convert to fraction form
    448,019.60/672,029.40 = 115,595.60/x
  3. Step 3: Cross multiply
    448,019.60x = 672,029.40 × 115,595.60
  4. Step 4: Simplify right side
    448,019.60x = 77,683,641,710.64
  5. Step 5: Solve for x
    x = 77,683,641,710.64/448,019.60
  6. Step 6: Final answer
    x = 173,393.40

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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.