Home / 930,390.03-1,283,933.38-522,509.06

Finding the Fourth Proportional to 930,390.03, 1,283,933.38 and 522,509.06

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Solution

The fourth proportional to 930,390.03, 1,283,933.38 and 522,509.06 is: 721,059.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    930,390.03 : 1,283,933.38 = 522,509.06 : x
  2. Step 2: Convert to fraction form
    930,390.03/1,283,933.38 = 522,509.06/x
  3. Step 3: Cross multiply
    930,390.03x = 1,283,933.38 × 522,509.06
  4. Step 4: Simplify right side
    930,390.03x = 670,866,826,369.69
  5. Step 5: Solve for x
    x = 670,866,826,369.69/930,390.03
  6. Step 6: Final answer
    x = 721,059.78

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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.