Home / 939,608.10-1,409,412.15-540,043.20

Finding the Fourth Proportional to 939,608.10, 1,409,412.15 and 540,043.20

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Solution

The fourth proportional to 939,608.10, 1,409,412.15 and 540,043.20 is: 810,064.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    939,608.10 : 1,409,412.15 = 540,043.20 : x
  2. Step 2: Convert to fraction form
    939,608.10/1,409,412.15 = 540,043.20/x
  3. Step 3: Cross multiply
    939,608.10x = 1,409,412.15 × 540,043.20
  4. Step 4: Simplify right side
    939,608.10x = 761,143,447,604.88
  5. Step 5: Solve for x
    x = 761,143,447,604.88/939,608.10
  6. Step 6: Final answer
    x = 810,064.80

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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.