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Finding the Fourth Proportional to 611,324.94, 915,794.48 and 400,323.18

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Solution

The fourth proportional to 611,324.94, 915,794.48 and 400,323.18 is: 599,703.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,324.94 : 915,794.48 = 400,323.18 : x
  2. Step 2: Convert to fraction form
    611,324.94/915,794.48 = 400,323.18/x
  3. Step 3: Cross multiply
    611,324.94x = 915,794.48 × 400,323.18
  4. Step 4: Simplify right side
    611,324.94x = 366,613,758,460.05
  5. Step 5: Solve for x
    x = 366,613,758,460.05/611,324.94
  6. Step 6: Final answer
    x = 599,703.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.