Home / 666,528-919,806.21-360,604.50

Finding the Fourth Proportional to 666,528, 919,806.21 and 360,604.50

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Solution

The fourth proportional to 666,528, 919,806.21 and 360,604.50 is: 497,632.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    666,528 : 919,806.21 = 360,604.50 : x
  2. Step 2: Convert to fraction form
    666,528/919,806.21 = 360,604.50/x
  3. Step 3: Cross multiply
    666,528x = 919,806.21 × 360,604.50
  4. Step 4: Simplify right side
    666,528x = 331,686,258,453.95
  5. Step 5: Solve for x
    x = 331,686,258,453.95/666,528
  6. Step 6: Final answer
    x = 497,632.90

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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.