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Finding the Fourth Proportional to 546,618.05, 754,351.67 and 317,158.01

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Solution

The fourth proportional to 546,618.05, 754,351.67 and 317,158.01 is: 437,688.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    546,618.05 : 754,351.67 = 317,158.01 : x
  2. Step 2: Convert to fraction form
    546,618.05/754,351.67 = 317,158.01/x
  3. Step 3: Cross multiply
    546,618.05x = 754,351.67 × 317,158.01
  4. Step 4: Simplify right side
    546,618.05x = 239,248,672,563.32
  5. Step 5: Solve for x
    x = 239,248,672,563.32/546,618.05
  6. Step 6: Final answer
    x = 437,688.94

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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.