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Finding the Fourth Proportional to 431,386.88, 595,358.48 and 259,361.12

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Solution

The fourth proportional to 431,386.88, 595,358.48 and 259,361.12 is: 357,945.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    431,386.88 : 595,358.48 = 259,361.12 : x
  2. Step 2: Convert to fraction form
    431,386.88/595,358.48 = 259,361.12/x
  3. Step 3: Cross multiply
    431,386.88x = 595,358.48 × 259,361.12
  4. Step 4: Simplify right side
    431,386.88x = 154,412,842,174.30
  5. Step 5: Solve for x
    x = 154,412,842,174.30/431,386.88
  6. Step 6: Final answer
    x = 357,945.15

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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.