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Finding the Fourth Proportional to 438,870.24, 605,643.36 and 237,666.24

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Solution

The fourth proportional to 438,870.24, 605,643.36 and 237,666.24 is: 327,980.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,870.24 : 605,643.36 = 237,666.24 : x
  2. Step 2: Convert to fraction form
    438,870.24/605,643.36 = 237,666.24/x
  3. Step 3: Cross multiply
    438,870.24x = 605,643.36 × 237,666.24
  4. Step 4: Simplify right side
    438,870.24x = 143,940,980,152.17
  5. Step 5: Solve for x
    x = 143,940,980,152.17/438,870.24
  6. Step 6: Final answer
    x = 327,980.73

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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.