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Finding the Fourth Proportional to 610,622.46, 916,016.99 and 211,155.93

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Solution

The fourth proportional to 610,622.46, 916,016.99 and 211,155.93 is: 316,762.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    610,622.46 : 916,016.99 = 211,155.93 : x
  2. Step 2: Convert to fraction form
    610,622.46/916,016.99 = 211,155.93/x
  3. Step 3: Cross multiply
    610,622.46x = 916,016.99 × 211,155.93
  4. Step 4: Simplify right side
    610,622.46x = 193,422,418,363.47
  5. Step 5: Solve for x
    x = 193,422,418,363.47/610,622.46
  6. Step 6: Final answer
    x = 316,762.70

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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.