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Finding the Fourth Proportional to 899,203.13, 1,349,470.44 and 425,889.89

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Solution

The fourth proportional to 899,203.13, 1,349,470.44 and 425,889.89 is: 639,150.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    899,203.13 : 1,349,470.44 = 425,889.89 : x
  2. Step 2: Convert to fraction form
    899,203.13/1,349,470.44 = 425,889.89/x
  3. Step 3: Cross multiply
    899,203.13x = 1,349,470.44 × 425,889.89
  4. Step 4: Simplify right side
    899,203.13x = 574,725,810,502.50
  5. Step 5: Solve for x
    x = 574,725,810,502.50/899,203.13
  6. Step 6: Final answer
    x = 639,150.15

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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.