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Finding the Fourth Proportional to 431,995.15, 596,149.09 and 238,404.64

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Solution

The fourth proportional to 431,995.15, 596,149.09 and 238,404.64 is: 328,996.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    431,995.15 : 596,149.09 = 238,404.64 : x
  2. Step 2: Convert to fraction form
    431,995.15/596,149.09 = 238,404.64/x
  3. Step 3: Cross multiply
    431,995.15x = 596,149.09 × 238,404.64
  4. Step 4: Simplify right side
    431,995.15x = 142,124,710,566.36
  5. Step 5: Solve for x
    x = 142,124,710,566.36/431,995.15
  6. Step 6: Final answer
    x = 328,996.08

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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.