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Finding the Fourth Proportional to 311,785,058.60, 437,215,718.20 and 311,785,058.60

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Solution

The fourth proportional to 311,785,058.60, 437,215,718.20 and 311,785,058.60 is: 437,215,718.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,785,058.60 : 437,215,718.20 = 311,785,058.60 : x
  2. Step 2: Convert to fraction form
    311,785,058.60/437,215,718.20 = 311,785,058.60/x
  3. Step 3: Cross multiply
    311,785,058.60x = 437,215,718.20 × 311,785,058.60
  4. Step 4: Simplify right side
    311,785,058.60x = 136,317,328,319,828,096
  5. Step 5: Solve for x
    x = 136,317,328,319,828,096/311,785,058.60
  6. Step 6: Final answer
    x = 437,215,718.20

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.