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Finding the Fourth Proportional to 381,691,803.60, 572,537,705.40 and 322,569,320.40

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Solution

The fourth proportional to 381,691,803.60, 572,537,705.40 and 322,569,320.40 is: 483,853,980.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,691,803.60 : 572,537,705.40 = 322,569,320.40 : x
  2. Step 2: Convert to fraction form
    381,691,803.60/572,537,705.40 = 322,569,320.40/x
  3. Step 3: Cross multiply
    381,691,803.60x = 572,537,705.40 × 322,569,320.40
  4. Step 4: Simplify right side
    381,691,803.60x = 184,683,098,534,253,376
  5. Step 5: Solve for x
    x = 184,683,098,534,253,376/381,691,803.60
  6. Step 6: Final answer
    x = 483,853,980.60

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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.