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Finding the Fourth Proportional to 348,097.40, 520,979.70 and 348,097.40

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Solution

The fourth proportional to 348,097.40, 520,979.70 and 348,097.40 is: 520,979.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,097.40 : 520,979.70 = 348,097.40 : x
  2. Step 2: Convert to fraction form
    348,097.40/520,979.70 = 348,097.40/x
  3. Step 3: Cross multiply
    348,097.40x = 520,979.70 × 348,097.40
  4. Step 4: Simplify right side
    348,097.40x = 181,351,679,022.78
  5. Step 5: Solve for x
    x = 181,351,679,022.78/348,097.40
  6. Step 6: Final answer
    x = 520,979.70

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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.