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Finding the Fourth Proportional to 673,877.38, 929,615.16 and 401,753.74

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Solution

The fourth proportional to 673,877.38, 929,615.16 and 401,753.74 is: 554,220.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    673,877.38 : 929,615.16 = 401,753.74 : x
  2. Step 2: Convert to fraction form
    673,877.38/929,615.16 = 401,753.74/x
  3. Step 3: Cross multiply
    673,877.38x = 929,615.16 × 401,753.74
  4. Step 4: Simplify right side
    673,877.38x = 373,476,367,290.70
  5. Step 5: Solve for x
    x = 373,476,367,290.70/673,877.38
  6. Step 6: Final answer
    x = 554,220.07

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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.