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Finding the Fourth Proportional to 504,229, 695,870.43 and 308,079.45

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Solution

The fourth proportional to 504,229, 695,870.43 and 308,079.45 is: 425,170.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    504,229 : 695,870.43 = 308,079.45 : x
  2. Step 2: Convert to fraction form
    504,229/695,870.43 = 308,079.45/x
  3. Step 3: Cross multiply
    504,229x = 695,870.43 × 308,079.45
  4. Step 4: Simplify right side
    504,229x = 214,383,379,345.66
  5. Step 5: Solve for x
    x = 214,383,379,345.66/504,229
  6. Step 6: Final answer
    x = 425,170.67

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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.