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Finding the Fourth Proportional to 647,567.10, 971,350.65 and 544,923.90

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Solution

The fourth proportional to 647,567.10, 971,350.65 and 544,923.90 is: 817,385.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,567.10 : 971,350.65 = 544,923.90 : x
  2. Step 2: Convert to fraction form
    647,567.10/971,350.65 = 544,923.90/x
  3. Step 3: Cross multiply
    647,567.10x = 971,350.65 × 544,923.90
  4. Step 4: Simplify right side
    647,567.10x = 529,312,184,465.54
  5. Step 5: Solve for x
    x = 529,312,184,465.54/647,567.10
  6. Step 6: Final answer
    x = 817,385.85

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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.