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Finding the Fourth Proportional to 899,889, 1,241,872.74 and 497,506.92

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Solution

The fourth proportional to 899,889, 1,241,872.74 and 497,506.92 is: 686,573.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    899,889 : 1,241,872.74 = 497,506.92 : x
  2. Step 2: Convert to fraction form
    899,889/1,241,872.74 = 497,506.92/x
  3. Step 3: Cross multiply
    899,889x = 1,241,872.74 × 497,506.92
  4. Step 4: Simplify right side
    899,889x = 617,840,281,909.36
  5. Step 5: Solve for x
    x = 617,840,281,909.36/899,889
  6. Step 6: Final answer
    x = 686,573.88

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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.