Home / 415,531.80-623,297.70-135,077.40

Finding the Fourth Proportional to 415,531.80, 623,297.70 and 135,077.40

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Solution

The fourth proportional to 415,531.80, 623,297.70 and 135,077.40 is: 202,616.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    415,531.80 : 623,297.70 = 135,077.40 : x
  2. Step 2: Convert to fraction form
    415,531.80/623,297.70 = 135,077.40/x
  3. Step 3: Cross multiply
    415,531.80x = 623,297.70 × 135,077.40
  4. Step 4: Simplify right side
    415,531.80x = 84,193,432,741.98
  5. Step 5: Solve for x
    x = 84,193,432,741.98/415,531.80
  6. Step 6: Final answer
    x = 202,616.10

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1.5x scale

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.