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Finding the Fourth Proportional to 416,404.53, 574,640.09 and 225,417.93

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Solution

The fourth proportional to 416,404.53, 574,640.09 and 225,417.93 is: 311,077.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    416,404.53 : 574,640.09 = 225,417.93 : x
  2. Step 2: Convert to fraction form
    416,404.53/574,640.09 = 225,417.93/x
  3. Step 3: Cross multiply
    416,404.53x = 574,640.09 × 225,417.93
  4. Step 4: Simplify right side
    416,404.53x = 129,534,179,582.81
  5. Step 5: Solve for x
    x = 129,534,179,582.81/416,404.53
  6. Step 6: Final answer
    x = 311,077.74

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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.