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Finding the Fourth Proportional to 438,911.77, 605,698.29 and 237,707.77

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Solution

The fourth proportional to 438,911.77, 605,698.29 and 237,707.77 is: 328,036.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,911.77 : 605,698.29 = 237,707.77 : x
  2. Step 2: Convert to fraction form
    438,911.77/605,698.29 = 237,707.77/x
  3. Step 3: Cross multiply
    438,911.77x = 605,698.29 × 237,707.77
  4. Step 4: Simplify right side
    438,911.77x = 143,979,189,808.71
  5. Step 5: Solve for x
    x = 143,979,189,808.71/438,911.77
  6. Step 6: Final answer
    x = 328,036.75

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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.