Home / 930,401.76-1,283,950.80-522,446.88

Finding the Fourth Proportional to 930,401.76, 1,283,950.80 and 522,446.88

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Solution

The fourth proportional to 930,401.76, 1,283,950.80 and 522,446.88 is: 720,974.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    930,401.76 : 1,283,950.80 = 522,446.88 : x
  2. Step 2: Convert to fraction form
    930,401.76/1,283,950.80 = 522,446.88/x
  3. Step 3: Cross multiply
    930,401.76x = 1,283,950.80 × 522,446.88
  4. Step 4: Simplify right side
    930,401.76x = 670,796,089,533.50
  5. Step 5: Solve for x
    x = 670,796,089,533.50/930,401.76
  6. Step 6: Final answer
    x = 720,974.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.