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Finding the Fourth Proportional to 543,801.96, 815,979.96 and 384,899.40

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Solution

The fourth proportional to 543,801.96, 815,979.96 and 384,899.40 is: 577,545.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,801.96 : 815,979.96 = 384,899.40 : x
  2. Step 2: Convert to fraction form
    543,801.96/815,979.96 = 384,899.40/x
  3. Step 3: Cross multiply
    543,801.96x = 815,979.96 × 384,899.40
  4. Step 4: Simplify right side
    543,801.96x = 314,070,197,016.02
  5. Step 5: Solve for x
    x = 314,070,197,016.02/543,801.96
  6. Step 6: Final answer
    x = 577,545.17

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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.