Home / 939,218.20-1,409,604.90-434,555.80

Finding the Fourth Proportional to 939,218.20, 1,409,604.90 and 434,555.80

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Solution

The fourth proportional to 939,218.20, 1,409,604.90 and 434,555.80 is: 652,193.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    939,218.20 : 1,409,604.90 = 434,555.80 : x
  2. Step 2: Convert to fraction form
    939,218.20/1,409,604.90 = 434,555.80/x
  3. Step 3: Cross multiply
    939,218.20x = 1,409,604.90 × 434,555.80
  4. Step 4: Simplify right side
    939,218.20x = 612,551,985,003.42
  5. Step 5: Solve for x
    x = 612,551,985,003.42/939,218.20
  6. Step 6: Final answer
    x = 652,193.48

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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.