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Finding the Fourth Proportional to 282,577.51, 389,950.69 and 153,512.65

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Solution

The fourth proportional to 282,577.51, 389,950.69 and 153,512.65 is: 211,844.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,577.51 : 389,950.69 = 153,512.65 : x
  2. Step 2: Convert to fraction form
    282,577.51/389,950.69 = 153,512.65/x
  3. Step 3: Cross multiply
    282,577.51x = 389,950.69 × 153,512.65
  4. Step 4: Simplify right side
    282,577.51x = 59,862,361,073.91
  5. Step 5: Solve for x
    x = 59,862,361,073.91/282,577.51
  6. Step 6: Final answer
    x = 211,844.04

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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.