Home / 1,224,007.20-1,689,096.24-680,128.92

Finding the Fourth Proportional to 1,224,007.20, 1,689,096.24 and 680,128.92

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Solution

The fourth proportional to 1,224,007.20, 1,689,096.24 and 680,128.92 is: 938,559.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,224,007.20 : 1,689,096.24 = 680,128.92 : x
  2. Step 2: Convert to fraction form
    1,224,007.20/1,689,096.24 = 680,128.92/x
  3. Step 3: Cross multiply
    1,224,007.20x = 1,689,096.24 × 680,128.92
  4. Step 4: Simplify right side
    1,224,007.20x = 1,148,803,201,487.26
  5. Step 5: Solve for x
    x = 1,148,803,201,487.26/1,224,007.20
  6. Step 6: Final answer
    x = 938,559.19

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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.