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Finding the Fourth Proportional to 425,091.19, 637,725.48 and 225,357.34

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Solution

The fourth proportional to 425,091.19, 637,725.48 and 225,357.34 is: 338,083.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,091.19 : 637,725.48 = 225,357.34 : x
  2. Step 2: Convert to fraction form
    425,091.19/637,725.48 = 225,357.34/x
  3. Step 3: Cross multiply
    425,091.19x = 637,725.48 × 225,357.34
  4. Step 4: Simplify right side
    425,091.19x = 143,716,117,823.02
  5. Step 5: Solve for x
    x = 143,716,117,823.02/425,091.19
  6. Step 6: Final answer
    x = 338,083.03

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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.