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Finding the Fourth Proportional to 296,411.40, 443,321.10 and 265,048.20

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Solution

The fourth proportional to 296,411.40, 443,321.10 and 265,048.20 is: 396,413.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    296,411.40 : 443,321.10 = 265,048.20 : x
  2. Step 2: Convert to fraction form
    296,411.40/443,321.10 = 265,048.20/x
  3. Step 3: Cross multiply
    296,411.40x = 443,321.10 × 265,048.20
  4. Step 4: Simplify right side
    296,411.40x = 117,501,459,577.02
  5. Step 5: Solve for x
    x = 117,501,459,577.02/296,411.40
  6. Step 6: Final answer
    x = 396,413.43

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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.