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Finding the Fourth Proportional to 647,548.10, 971,322.15 and 544,904.90

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Solution

The fourth proportional to 647,548.10, 971,322.15 and 544,904.90 is: 817,357.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,548.10 : 971,322.15 = 544,904.90 : x
  2. Step 2: Convert to fraction form
    647,548.10/971,322.15 = 544,904.90/x
  3. Step 3: Cross multiply
    647,548.10x = 971,322.15 × 544,904.90
  4. Step 4: Simplify right side
    647,548.10x = 529,278,199,013.54
  5. Step 5: Solve for x
    x = 529,278,199,013.54/647,548.10
  6. Step 6: Final answer
    x = 817,357.35

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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.