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Finding the Fourth Proportional to 3,547,296.38, 4,895,268.82 and 1,915,703.58

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Solution

The fourth proportional to 3,547,296.38, 4,895,268.82 and 1,915,703.58 is: 2,643,670.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,547,296.38 : 4,895,268.82 = 1,915,703.58 : x
  2. Step 2: Convert to fraction form
    3,547,296.38/4,895,268.82 = 1,915,703.58/x
  3. Step 3: Cross multiply
    3,547,296.38x = 4,895,268.82 × 1,915,703.58
  4. Step 4: Simplify right side
    3,547,296.38x = 9,377,884,003,536.38
  5. Step 5: Solve for x
    x = 9,377,884,003,536.38/3,547,296.38
  6. Step 6: Final answer
    x = 2,643,670.84

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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.