Home / 621,329.24-856,608.54-406,099.28

Finding the Fourth Proportional to 621,329.24, 856,608.54 and 406,099.28

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Solution

The fourth proportional to 621,329.24, 856,608.54 and 406,099.28 is: 559,877.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,329.24 : 856,608.54 = 406,099.28 : x
  2. Step 2: Convert to fraction form
    621,329.24/856,608.54 = 406,099.28/x
  3. Step 3: Cross multiply
    621,329.24x = 856,608.54 × 406,099.28
  4. Step 4: Simplify right side
    621,329.24x = 347,868,111,335.85
  5. Step 5: Solve for x
    x = 347,868,111,335.85/621,329.24
  6. Step 6: Final answer
    x = 559,877.26

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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.