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Finding the Fourth Proportional to 1,985,353.88, 2,977,749.60 and 637,338.96

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Solution

The fourth proportional to 1,985,353.88, 2,977,749.60 and 637,338.96 is: 955,918.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,985,353.88 : 2,977,749.60 = 637,338.96 : x
  2. Step 2: Convert to fraction form
    1,985,353.88/2,977,749.60 = 637,338.96/x
  3. Step 3: Cross multiply
    1,985,353.88x = 2,977,749.60 × 637,338.96
  4. Step 4: Simplify right side
    1,985,353.88x = 1,897,835,833,204.42
  5. Step 5: Solve for x
    x = 1,897,835,833,204.42/1,985,353.88
  6. Step 6: Final answer
    x = 955,918.16

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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.