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Finding the Fourth Proportional to 558,068.67, 770,161.08 and 316,355.94

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Solution

The fourth proportional to 558,068.67, 770,161.08 and 316,355.94 is: 436,586.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    558,068.67 : 770,161.08 = 316,355.94 : x
  2. Step 2: Convert to fraction form
    558,068.67/770,161.08 = 316,355.94/x
  3. Step 3: Cross multiply
    558,068.67x = 770,161.08 × 316,355.94
  4. Step 4: Simplify right side
    558,068.67x = 243,645,032,414.82
  5. Step 5: Solve for x
    x = 243,645,032,414.82/558,068.67
  6. Step 6: Final answer
    x = 436,586.11

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.