Home / 939,319.98-1,407,825.18-433,178.25

Finding the Fourth Proportional to 939,319.98, 1,407,825.18 and 433,178.25

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Solution

The fourth proportional to 939,319.98, 1,407,825.18 and 433,178.25 is: 649,234.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    939,319.98 : 1,407,825.18 = 433,178.25 : x
  2. Step 2: Convert to fraction form
    939,319.98/1,407,825.18 = 433,178.25/x
  3. Step 3: Cross multiply
    939,319.98x = 1,407,825.18 × 433,178.25
  4. Step 4: Simplify right side
    939,319.98x = 609,839,247,778.34
  5. Step 5: Solve for x
    x = 609,839,247,778.34/939,319.98
  6. Step 6: Final answer
    x = 649,234.83

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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.