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Finding the Fourth Proportional to 440,373.72, 607,716.90 and 259,092.48

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Solution

The fourth proportional to 440,373.72, 607,716.90 and 259,092.48 is: 357,548.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,373.72 : 607,716.90 = 259,092.48 : x
  2. Step 2: Convert to fraction form
    440,373.72/607,716.90 = 259,092.48/x
  3. Step 3: Cross multiply
    440,373.72x = 607,716.90 × 259,092.48
  4. Step 4: Simplify right side
    440,373.72x = 157,454,878,758.91
  5. Step 5: Solve for x
    x = 157,454,878,758.91/440,373.72
  6. Step 6: Final answer
    x = 357,548.31

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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.