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Finding the Fourth Proportional to 375,638,867.80, 563,458,301.70 and 230,520,045.40

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Solution

The fourth proportional to 375,638,867.80, 563,458,301.70 and 230,520,045.40 is: 345,780,068.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,638,867.80 : 563,458,301.70 = 230,520,045.40 : x
  2. Step 2: Convert to fraction form
    375,638,867.80/563,458,301.70 = 230,520,045.40/x
  3. Step 3: Cross multiply
    375,638,867.80x = 563,458,301.70 × 230,520,045.40
  4. Step 4: Simplify right side
    375,638,867.80x = 129,888,433,288,890,912
  5. Step 5: Solve for x
    x = 129,888,433,288,890,912/375,638,867.80
  6. Step 6: Final answer
    x = 345,780,068.10

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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.