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Finding the Fourth Proportional to 514,392.03, 709,872.39 and 293,624.78

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Solution

The fourth proportional to 514,392.03, 709,872.39 and 293,624.78 is: 405,208.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    514,392.03 : 709,872.39 = 293,624.78 : x
  2. Step 2: Convert to fraction form
    514,392.03/709,872.39 = 293,624.78/x
  3. Step 3: Cross multiply
    514,392.03x = 709,872.39 × 293,624.78
  4. Step 4: Simplify right side
    514,392.03x = 208,436,120,792.46
  5. Step 5: Solve for x
    x = 208,436,120,792.46/514,392.03
  6. Step 6: Final answer
    x = 405,208.69

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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.