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Finding the Fourth Proportional to 1,788,376.68, 2,676,700.80 and 977,519.16

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Solution

The fourth proportional to 1,788,376.68, 2,676,700.80 and 977,519.16 is: 1,463,073.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,788,376.68 : 2,676,700.80 = 977,519.16 : x
  2. Step 2: Convert to fraction form
    1,788,376.68/2,676,700.80 = 977,519.16/x
  3. Step 3: Cross multiply
    1,788,376.68x = 2,676,700.80 × 977,519.16
  4. Step 4: Simplify right side
    1,788,376.68x = 2,616,526,317,587.33
  5. Step 5: Solve for x
    x = 2,616,526,317,587.33/1,788,376.68
  6. Step 6: Final answer
    x = 1,463,073.38

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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.