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Finding the Fourth Proportional to 555,448.64, 766,093.86 and 383,654.10

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Solution

The fourth proportional to 555,448.64, 766,093.86 and 383,654.10 is: 529,148.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,448.64 : 766,093.86 = 383,654.10 : x
  2. Step 2: Convert to fraction form
    555,448.64/766,093.86 = 383,654.10/x
  3. Step 3: Cross multiply
    555,448.64x = 766,093.86 × 383,654.10
  4. Step 4: Simplify right side
    555,448.64x = 293,915,050,373.83
  5. Step 5: Solve for x
    x = 293,915,050,373.83/555,448.64
  6. Step 6: Final answer
    x = 529,148.92

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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.