Home / 627,115.39-865,778.33-412,878.24

Finding the Fourth Proportional to 627,115.39, 865,778.33 and 412,878.24

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Solution

The fourth proportional to 627,115.39, 865,778.33 and 412,878.24 is: 570,008.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,115.39 : 865,778.33 = 412,878.24 : x
  2. Step 2: Convert to fraction form
    627,115.39/865,778.33 = 412,878.24/x
  3. Step 3: Cross multiply
    627,115.39x = 865,778.33 × 412,878.24
  4. Step 4: Simplify right side
    627,115.39x = 357,461,034,152.74
  5. Step 5: Solve for x
    x = 357,461,034,152.74/627,115.39
  6. Step 6: Final answer
    x = 570,008.39

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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.