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Finding the Fourth Proportional to 1,762,590, 2,432,472.62 and 998,889.60

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Solution

The fourth proportional to 1,762,590, 2,432,472.62 and 998,889.60 is: 1,378,523.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,762,590 : 2,432,472.62 = 998,889.60 : x
  2. Step 2: Convert to fraction form
    1,762,590/2,432,472.62 = 998,889.60/x
  3. Step 3: Cross multiply
    1,762,590x = 2,432,472.62 × 998,889.60
  4. Step 4: Simplify right side
    1,762,590x = 2,429,771,602,402.75
  5. Step 5: Solve for x
    x = 2,429,771,602,402.75/1,762,590
  6. Step 6: Final answer
    x = 1,378,523.42

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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.