Home / 286,654.18-429,833.82-128,747.14

Finding the Fourth Proportional to 286,654.18, 429,833.82 and 128,747.14

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Solution

The fourth proportional to 286,654.18, 429,833.82 and 128,747.14 is: 193,054.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,654.18 : 429,833.82 = 128,747.14 : x
  2. Step 2: Convert to fraction form
    286,654.18/429,833.82 = 128,747.14/x
  3. Step 3: Cross multiply
    286,654.18x = 429,833.82 × 128,747.14
  4. Step 4: Simplify right side
    286,654.18x = 55,339,875,000.27
  5. Step 5: Solve for x
    x = 55,339,875,000.27/286,654.18
  6. Step 6: Final answer
    x = 193,054.48

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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.