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Finding the Fourth Proportional to 470,574.25, 649,479.95 and 269,370.25

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Solution

The fourth proportional to 470,574.25, 649,479.95 and 269,370.25 is: 371,781.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    470,574.25 : 649,479.95 = 269,370.25 : x
  2. Step 2: Convert to fraction form
    470,574.25/649,479.95 = 269,370.25/x
  3. Step 3: Cross multiply
    470,574.25x = 649,479.95 × 269,370.25
  4. Step 4: Simplify right side
    470,574.25x = 174,950,576,501.49
  5. Step 5: Solve for x
    x = 174,950,576,501.49/470,574.25
  6. Step 6: Final answer
    x = 371,781.02

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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.