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Finding the Fourth Proportional to 622,897.90, 934,346.85 and 423,832.30

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Solution

The fourth proportional to 622,897.90, 934,346.85 and 423,832.30 is: 635,748.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    622,897.90 : 934,346.85 = 423,832.30 : x
  2. Step 2: Convert to fraction form
    622,897.90/934,346.85 = 423,832.30/x
  3. Step 3: Cross multiply
    622,897.90x = 934,346.85 × 423,832.30
  4. Step 4: Simplify right side
    622,897.90x = 396,006,374,433.26
  5. Step 5: Solve for x
    x = 396,006,374,433.26/622,897.90
  6. Step 6: Final answer
    x = 635,748.45

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Similar ratio
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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.