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Finding the Fourth Proportional to 652,398.70, 978,598.05 and 541,806.70

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Solution

The fourth proportional to 652,398.70, 978,598.05 and 541,806.70 is: 812,710.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    652,398.70 : 978,598.05 = 541,806.70 : x
  2. Step 2: Convert to fraction form
    652,398.70/978,598.05 = 541,806.70/x
  3. Step 3: Cross multiply
    652,398.70x = 978,598.05 × 541,806.70
  4. Step 4: Simplify right side
    652,398.70x = 530,210,980,096.94
  5. Step 5: Solve for x
    x = 530,210,980,096.94/652,398.70
  6. Step 6: Final answer
    x = 812,710.05

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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.