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Finding the Fourth Proportional to 544,765.78, 817,152.77 and 189,779.23

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Solution

The fourth proportional to 544,765.78, 817,152.77 and 189,779.23 is: 284,670.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    544,765.78 : 817,152.77 = 189,779.23 : x
  2. Step 2: Convert to fraction form
    544,765.78/817,152.77 = 189,779.23/x
  3. Step 3: Cross multiply
    544,765.78x = 817,152.77 × 189,779.23
  4. Step 4: Simplify right side
    544,765.78x = 155,078,623,482.97
  5. Step 5: Solve for x
    x = 155,078,623,482.97/544,765.78
  6. Step 6: Final answer
    x = 284,670.27

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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.