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Finding the Fourth Proportional to 559,204.98, 771,711.75 and 317,482.62

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Solution

The fourth proportional to 559,204.98, 771,711.75 and 317,482.62 is: 438,131.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,204.98 : 771,711.75 = 317,482.62 : x
  2. Step 2: Convert to fraction form
    559,204.98/771,711.75 = 317,482.62/x
  3. Step 3: Cross multiply
    559,204.98x = 771,711.75 × 317,482.62
  4. Step 4: Simplify right side
    559,204.98x = 245,005,068,274.79
  5. Step 5: Solve for x
    x = 245,005,068,274.79/559,204.98
  6. Step 6: Final answer
    x = 438,131.06

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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.