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Finding the Fourth Proportional to 2,985,398.64, 4,478,734.08 and 963,757.44

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Solution

The fourth proportional to 2,985,398.64, 4,478,734.08 and 963,757.44 is: 1,445,841.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,985,398.64 : 4,478,734.08 = 963,757.44 : x
  2. Step 2: Convert to fraction form
    2,985,398.64/4,478,734.08 = 963,757.44/x
  3. Step 3: Cross multiply
    2,985,398.64x = 4,478,734.08 × 963,757.44
  4. Step 4: Simplify right side
    2,985,398.64x = 4,316,413,291,381.56
  5. Step 5: Solve for x
    x = 4,316,413,291,381.56/2,985,398.64
  6. Step 6: Final answer
    x = 1,445,841.51

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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.