Home / 430,525.68-646,187.55-217,443.23

Finding the Fourth Proportional to 430,525.68, 646,187.55 and 217,443.23

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Solution

The fourth proportional to 430,525.68, 646,187.55 and 217,443.23 is: 326,366.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    430,525.68 : 646,187.55 = 217,443.23 : x
  2. Step 2: Convert to fraction form
    430,525.68/646,187.55 = 217,443.23/x
  3. Step 3: Cross multiply
    430,525.68x = 646,187.55 × 217,443.23
  4. Step 4: Simplify right side
    430,525.68x = 140,509,109,673.26
  5. Step 5: Solve for x
    x = 140,509,109,673.26/430,525.68
  6. Step 6: Final answer
    x = 326,366.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.