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Finding the Fourth Proportional to 609,114.64, 913,669.08 and 406,282

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Solution

The fourth proportional to 609,114.64, 913,669.08 and 406,282 is: 609,421.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    609,114.64 : 913,669.08 = 406,282 : x
  2. Step 2: Convert to fraction form
    609,114.64/913,669.08 = 406,282/x
  3. Step 3: Cross multiply
    609,114.64x = 913,669.08 × 406,282
  4. Step 4: Simplify right side
    609,114.64x = 371,207,301,160.56
  5. Step 5: Solve for x
    x = 371,207,301,160.56/609,114.64
  6. Step 6: Final answer
    x = 609,421.08

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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.