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Finding the Fourth Proportional to 424,572.16, 637,011.34 and 214,051.56

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Solution

The fourth proportional to 424,572.16, 637,011.34 and 214,051.56 is: 321,154.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,572.16 : 637,011.34 = 214,051.56 : x
  2. Step 2: Convert to fraction form
    424,572.16/637,011.34 = 214,051.56/x
  3. Step 3: Cross multiply
    424,572.16x = 637,011.34 × 214,051.56
  4. Step 4: Simplify right side
    424,572.16x = 136,353,271,064.69
  5. Step 5: Solve for x
    x = 136,353,271,064.69/424,572.16
  6. Step 6: Final answer
    x = 321,154.53

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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.