Home / 938,555.76-1,295,190-530,650.56

Finding the Fourth Proportional to 938,555.76, 1,295,190 and 530,650.56

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Solution

The fourth proportional to 938,555.76, 1,295,190 and 530,650.56 is: 732,288.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    938,555.76 : 1,295,190 = 530,650.56 : x
  2. Step 2: Convert to fraction form
    938,555.76/1,295,190 = 530,650.56/x
  3. Step 3: Cross multiply
    938,555.76x = 1,295,190 × 530,650.56
  4. Step 4: Simplify right side
    938,555.76x = 687,293,298,806.40
  5. Step 5: Solve for x
    x = 687,293,298,806.40/938,555.76
  6. Step 6: Final answer
    x = 732,288.19

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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.