Home / 644,200.40-966,430.20-223,389.20

Finding the Fourth Proportional to 644,200.40, 966,430.20 and 223,389.20

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Solution

The fourth proportional to 644,200.40, 966,430.20 and 223,389.20 is: 335,128.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    644,200.40 : 966,430.20 = 223,389.20 : x
  2. Step 2: Convert to fraction form
    644,200.40/966,430.20 = 223,389.20/x
  3. Step 3: Cross multiply
    644,200.40x = 966,430.20 × 223,389.20
  4. Step 4: Simplify right side
    644,200.40x = 215,890,069,233.84
  5. Step 5: Solve for x
    x = 215,890,069,233.84/644,200.40
  6. Step 6: Final answer
    x = 335,128.74

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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.