Home / 939,396.12-1,296,228.84-525,911.46

Finding the Fourth Proportional to 939,396.12, 1,296,228.84 and 525,911.46

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Solution

The fourth proportional to 939,396.12, 1,296,228.84 and 525,911.46 is: 725,680.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    939,396.12 : 1,296,228.84 = 525,911.46 : x
  2. Step 2: Convert to fraction form
    939,396.12/1,296,228.84 = 525,911.46/x
  3. Step 3: Cross multiply
    939,396.12x = 1,296,228.84 × 525,911.46
  4. Step 4: Simplify right side
    939,396.12x = 681,701,601,738.51
  5. Step 5: Solve for x
    x = 681,701,601,738.51/939,396.12
  6. Step 6: Final answer
    x = 725,680.67

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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.