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Finding the Fourth Proportional to 610,798.16, 916,255.56 and 189,961.04

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Solution

The fourth proportional to 610,798.16, 916,255.56 and 189,961.04 is: 284,959.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    610,798.16 : 916,255.56 = 189,961.04 : x
  2. Step 2: Convert to fraction form
    610,798.16/916,255.56 = 189,961.04/x
  3. Step 3: Cross multiply
    610,798.16x = 916,255.56 × 189,961.04
  4. Step 4: Simplify right side
    610,798.16x = 174,052,859,083.38
  5. Step 5: Solve for x
    x = 174,052,859,083.38/610,798.16
  6. Step 6: Final answer
    x = 284,959.70

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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.