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Finding the Fourth Proportional to 322,430.51, 444,918.75 and 186,443.93

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Solution

The fourth proportional to 322,430.51, 444,918.75 and 186,443.93 is: 257,272.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,430.51 : 444,918.75 = 186,443.93 : x
  2. Step 2: Convert to fraction form
    322,430.51/444,918.75 = 186,443.93/x
  3. Step 3: Cross multiply
    322,430.51x = 444,918.75 × 186,443.93
  4. Step 4: Simplify right side
    322,430.51x = 82,952,400,280.69
  5. Step 5: Solve for x
    x = 82,952,400,280.69/322,430.51
  6. Step 6: Final answer
    x = 257,272.18

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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.