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Finding the Fourth Proportional to 468,868,374.40, 703,302,561.60 and 239,544,803.20

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Solution

The fourth proportional to 468,868,374.40, 703,302,561.60 and 239,544,803.20 is: 359,317,204.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    468,868,374.40 : 703,302,561.60 = 239,544,803.20 : x
  2. Step 2: Convert to fraction form
    468,868,374.40/703,302,561.60 = 239,544,803.20/x
  3. Step 3: Cross multiply
    468,868,374.40x = 703,302,561.60 × 239,544,803.20
  4. Step 4: Simplify right side
    468,868,374.40x = 168,472,473,708,527,872
  5. Step 5: Solve for x
    x = 168,472,473,708,527,872/468,868,374.40
  6. Step 6: Final answer
    x = 359,317,204.80

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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.