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Finding the Fourth Proportional to 519,956.64, 717,554.88 and 293,636.16

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Solution

The fourth proportional to 519,956.64, 717,554.88 and 293,636.16 is: 405,226.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,956.64 : 717,554.88 = 293,636.16 : x
  2. Step 2: Convert to fraction form
    519,956.64/717,554.88 = 293,636.16/x
  3. Step 3: Cross multiply
    519,956.64x = 717,554.88 × 293,636.16
  4. Step 4: Simplify right side
    519,956.64x = 210,700,059,552.46
  5. Step 5: Solve for x
    x = 210,700,059,552.46/519,956.64
  6. Step 6: Final answer
    x = 405,226.21

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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.