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Finding the Fourth Proportional to 440,172.62, 607,440.74 and 258,892.19

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Solution

The fourth proportional to 440,172.62, 607,440.74 and 258,892.19 is: 357,272.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,172.62 : 607,440.74 = 258,892.19 : x
  2. Step 2: Convert to fraction form
    440,172.62/607,440.74 = 258,892.19/x
  3. Step 3: Cross multiply
    440,172.62x = 607,440.74 × 258,892.19
  4. Step 4: Simplify right side
    440,172.62x = 157,261,659,142.16
  5. Step 5: Solve for x
    x = 157,261,659,142.16/440,172.62
  6. Step 6: Final answer
    x = 357,272.70

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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.