Home / 644,214.15-966,161.54-217,740.50

Finding the Fourth Proportional to 644,214.15, 966,161.54 and 217,740.50

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Solution

The fourth proportional to 644,214.15, 966,161.54 and 217,740.50 is: 326,556.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    644,214.15 : 966,161.54 = 217,740.50 : x
  2. Step 2: Convert to fraction form
    644,214.15/966,161.54 = 217,740.50/x
  3. Step 3: Cross multiply
    644,214.15x = 966,161.54 × 217,740.50
  4. Step 4: Simplify right side
    644,214.15x = 210,372,490,880.86
  5. Step 5: Solve for x
    x = 210,372,490,880.86/644,214.15
  6. Step 6: Final answer
    x = 326,556.77

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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.