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Finding the Fourth Proportional to 438,888.16, 605,661.87 and 237,684.16

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Solution

The fourth proportional to 438,888.16, 605,661.87 and 237,684.16 is: 328,002.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,888.16 : 605,661.87 = 237,684.16 : x
  2. Step 2: Convert to fraction form
    438,888.16/605,661.87 = 237,684.16/x
  3. Step 3: Cross multiply
    438,888.16x = 605,661.87 × 237,684.16
  4. Step 4: Simplify right side
    438,888.16x = 143,956,232,814.98
  5. Step 5: Solve for x
    x = 143,956,232,814.98/438,888.16
  6. Step 6: Final answer
    x = 328,002.09

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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.