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Finding the Fourth Proportional to 533,578.20, 736,401.42 and 307,267.80

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Solution

The fourth proportional to 533,578.20, 736,401.42 and 307,267.80 is: 424,066.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    533,578.20 : 736,401.42 = 307,267.80 : x
  2. Step 2: Convert to fraction form
    533,578.20/736,401.42 = 307,267.80/x
  3. Step 3: Cross multiply
    533,578.20x = 736,401.42 × 307,267.80
  4. Step 4: Simplify right side
    533,578.20x = 226,272,444,240.28
  5. Step 5: Solve for x
    x = 226,272,444,240.28/533,578.20
  6. Step 6: Final answer
    x = 424,066.13

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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.