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Finding the Fourth Proportional to 669,352,417.70, 1,004,028,626.55 and 238,375,393.70

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Solution

The fourth proportional to 669,352,417.70, 1,004,028,626.55 and 238,375,393.70 is: 357,563,090.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    669,352,417.70 : 1,004,028,626.55 = 238,375,393.70 : x
  2. Step 2: Convert to fraction form
    669,352,417.70/1,004,028,626.55 = 238,375,393.70/x
  3. Step 3: Cross multiply
    669,352,417.70x = 1,004,028,626.55 × 238,375,393.70
  4. Step 4: Simplify right side
    669,352,417.70x = 239,335,719,139,926,496
  5. Step 5: Solve for x
    x = 239,335,719,139,926,496/669,352,417.70
  6. Step 6: Final answer
    x = 357,563,090.55

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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.