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Finding the Fourth Proportional to 543,616.30, 815,424.45 and 401,898.70

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Solution

The fourth proportional to 543,616.30, 815,424.45 and 401,898.70 is: 602,848.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,616.30 : 815,424.45 = 401,898.70 : x
  2. Step 2: Convert to fraction form
    543,616.30/815,424.45 = 401,898.70/x
  3. Step 3: Cross multiply
    543,616.30x = 815,424.45 × 401,898.70
  4. Step 4: Simplify right side
    543,616.30x = 327,718,026,403.22
  5. Step 5: Solve for x
    x = 327,718,026,403.22/543,616.30
  6. Step 6: Final answer
    x = 602,848.05

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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.