Home / 286,686.00-395,631.55-157,629.77

Finding the Fourth Proportional to 286,686.00, 395,631.55 and 157,629.77

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Solution

The fourth proportional to 286,686.00, 395,631.55 and 157,629.77 is: 217,531.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,686.00 : 395,631.55 = 157,629.77 : x
  2. Step 2: Convert to fraction form
    286,686.00/395,631.55 = 157,629.77/x
  3. Step 3: Cross multiply
    286,686.00x = 395,631.55 × 157,629.77
  4. Step 4: Simplify right side
    286,686.00x = 62,363,309,933.74
  5. Step 5: Solve for x
    x = 62,363,309,933.74/286,686.00
  6. Step 6: Final answer
    x = 217,531.76

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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.