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Finding the Fourth Proportional to 633,509,607.85, 949,038,691.21 and 356,318,617.25

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Solution

The fourth proportional to 633,509,607.85, 949,038,691.21 and 356,318,617.25 is: 533,788,517.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    633,509,607.85 : 949,038,691.21 = 356,318,617.25 : x
  2. Step 2: Convert to fraction form
    633,509,607.85/949,038,691.21 = 356,318,617.25/x
  3. Step 3: Cross multiply
    633,509,607.85x = 949,038,691.21 × 356,318,617.25
  4. Step 4: Simplify right side
    633,509,607.85x = 338,160,154,168,696,960
  5. Step 5: Solve for x
    x = 338,160,154,168,696,960/633,509,607.85
  6. Step 6: Final answer
    x = 533,788,517.14

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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.