Home / 644,011.50-966,020.56-377,585.16

Finding the Fourth Proportional to 644,011.50, 966,020.56 and 377,585.16

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Solution

The fourth proportional to 644,011.50, 966,020.56 and 377,585.16 is: 566,379.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    644,011.50 : 966,020.56 = 377,585.16 : x
  2. Step 2: Convert to fraction form
    644,011.50/966,020.56 = 377,585.16/x
  3. Step 3: Cross multiply
    644,011.50x = 966,020.56 × 377,585.16
  4. Step 4: Simplify right side
    644,011.50x = 364,755,027,710.89
  5. Step 5: Solve for x
    x = 364,755,027,710.89/644,011.50
  6. Step 6: Final answer
    x = 566,379.68

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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.