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Finding the Fourth Proportional to 580,173.78, 800,675.10 and 386,246.82

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Solution

The fourth proportional to 580,173.78, 800,675.10 and 386,246.82 is: 533,044.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    580,173.78 : 800,675.10 = 386,246.82 : x
  2. Step 2: Convert to fraction form
    580,173.78/800,675.10 = 386,246.82/x
  3. Step 3: Cross multiply
    580,173.78x = 800,675.10 × 386,246.82
  4. Step 4: Simplify right side
    580,173.78x = 309,258,211,228.18
  5. Step 5: Solve for x
    x = 309,258,211,228.18/580,173.78
  6. Step 6: Final answer
    x = 533,044.10

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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.