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Finding the Fourth Proportional to 519,981.12, 717,572.88 and 293,626.80

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Solution

The fourth proportional to 519,981.12, 717,572.88 and 293,626.80 is: 405,204.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,981.12 : 717,572.88 = 293,626.80 : x
  2. Step 2: Convert to fraction form
    519,981.12/717,572.88 = 293,626.80/x
  3. Step 3: Cross multiply
    519,981.12x = 717,572.88 × 293,626.80
  4. Step 4: Simplify right side
    519,981.12x = 210,698,628,521.18
  5. Step 5: Solve for x
    x = 210,698,628,521.18/519,981.12
  6. Step 6: Final answer
    x = 405,204.38

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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.