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Finding the Fourth Proportional to 635,432.52, 876,899.82 and 363,503.40

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Solution

The fourth proportional to 635,432.52, 876,899.82 and 363,503.40 is: 501,636.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    635,432.52 : 876,899.82 = 363,503.40 : x
  2. Step 2: Convert to fraction form
    635,432.52/876,899.82 = 363,503.40/x
  3. Step 3: Cross multiply
    635,432.52x = 876,899.82 × 363,503.40
  4. Step 4: Simplify right side
    635,432.52x = 318,756,066,029.39
  5. Step 5: Solve for x
    x = 318,756,066,029.39/635,432.52
  6. Step 6: Final answer
    x = 501,636.38

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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.