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Finding the Fourth Proportional to 1,620,804, 2,431,309.68 and 623,532

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Solution

The fourth proportional to 1,620,804, 2,431,309.68 and 623,532 is: 935,337.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,620,804 : 2,431,309.68 = 623,532 : x
  2. Step 2: Convert to fraction form
    1,620,804/2,431,309.68 = 623,532/x
  3. Step 3: Cross multiply
    1,620,804x = 2,431,309.68 × 623,532
  4. Step 4: Simplify right side
    1,620,804x = 1,515,999,387,389.76
  5. Step 5: Solve for x
    x = 1,515,999,387,389.76/1,620,804
  6. Step 6: Final answer
    x = 935,337.89

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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.