Home / 738,409.66-1,019,006.24-398,877.91

Finding the Fourth Proportional to 738,409.66, 1,019,006.24 and 398,877.91

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Solution

The fourth proportional to 738,409.66, 1,019,006.24 and 398,877.91 is: 550,452.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    738,409.66 : 1,019,006.24 = 398,877.91 : x
  2. Step 2: Convert to fraction form
    738,409.66/1,019,006.24 = 398,877.91/x
  3. Step 3: Cross multiply
    738,409.66x = 1,019,006.24 × 398,877.91
  4. Step 4: Simplify right side
    738,409.66x = 406,459,079,288.16
  5. Step 5: Solve for x
    x = 406,459,079,288.16/738,409.66
  6. Step 6: Final answer
    x = 550,452.01

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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.