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Finding the Fourth Proportional to 539,331.90, 808,803.45 and 273,003.90

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Solution

The fourth proportional to 539,331.90, 808,803.45 and 273,003.90 is: 409,407.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,331.90 : 808,803.45 = 273,003.90 : x
  2. Step 2: Convert to fraction form
    539,331.90/808,803.45 = 273,003.90/x
  3. Step 3: Cross multiply
    539,331.90x = 808,803.45 × 273,003.90
  4. Step 4: Simplify right side
    539,331.90x = 220,806,496,183.46
  5. Step 5: Solve for x
    x = 220,806,496,183.46/539,331.90
  6. Step 6: Final answer
    x = 409,407.45

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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.