Home / 282,689.22-390,134.26-169,509.54

Finding the Fourth Proportional to 282,689.22, 390,134.26 and 169,509.54

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Solution

The fourth proportional to 282,689.22, 390,134.26 and 169,509.54 is: 233,937.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,689.22 : 390,134.26 = 169,509.54 : x
  2. Step 2: Convert to fraction form
    282,689.22/390,134.26 = 169,509.54/x
  3. Step 3: Cross multiply
    282,689.22x = 390,134.26 × 169,509.54
  4. Step 4: Simplify right side
    282,689.22x = 66,131,478,950.84
  5. Step 5: Solve for x
    x = 66,131,478,950.84/282,689.22
  6. Step 6: Final answer
    x = 233,937.04

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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.