Home / 644,385.10-966,503.58-171,107.50

Finding the Fourth Proportional to 644,385.10, 966,503.58 and 171,107.50

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Solution

The fourth proportional to 644,385.10, 966,503.58 and 171,107.50 is: 256,641.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    644,385.10 : 966,503.58 = 171,107.50 : x
  2. Step 2: Convert to fraction form
    644,385.10/966,503.58 = 171,107.50/x
  3. Step 3: Cross multiply
    644,385.10x = 966,503.58 × 171,107.50
  4. Step 4: Simplify right side
    644,385.10x = 165,376,011,314.85
  5. Step 5: Solve for x
    x = 165,376,011,314.85/644,385.10
  6. Step 6: Final answer
    x = 256,641.58

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1.5x scale

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.