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Finding the Fourth Proportional to 415,508.88, 574,370.40 and 370,631.64

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Solution

The fourth proportional to 415,508.88, 574,370.40 and 370,631.64 is: 512,335.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    415,508.88 : 574,370.40 = 370,631.64 : x
  2. Step 2: Convert to fraction form
    415,508.88/574,370.40 = 370,631.64/x
  3. Step 3: Cross multiply
    415,508.88x = 574,370.40 × 370,631.64
  4. Step 4: Simplify right side
    415,508.88x = 212,879,843,319.46
  5. Step 5: Solve for x
    x = 212,879,843,319.46/415,508.88
  6. Step 6: Final answer
    x = 512,335.24

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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.