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Finding the Fourth Proportional to 609,570.90, 914,416.56 and 210,159.18

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Solution

The fourth proportional to 609,570.90, 914,416.56 and 210,159.18 is: 315,259.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    609,570.90 : 914,416.56 = 210,159.18 : x
  2. Step 2: Convert to fraction form
    609,570.90/914,416.56 = 210,159.18/x
  3. Step 3: Cross multiply
    609,570.90x = 914,416.56 × 210,159.18
  4. Step 4: Simplify right side
    609,570.90x = 192,173,034,428.02
  5. Step 5: Solve for x
    x = 192,173,034,428.02/609,570.90
  6. Step 6: Final answer
    x = 315,259.53

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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.