Home / 1,143,913.40-1,578,547.64-627,654.44

Finding the Fourth Proportional to 1,143,913.40, 1,578,547.64 and 627,654.44

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Solution

The fourth proportional to 1,143,913.40, 1,578,547.64 and 627,654.44 is: 866,134.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,143,913.40 : 1,578,547.64 = 627,654.44 : x
  2. Step 2: Convert to fraction form
    1,143,913.40/1,578,547.64 = 627,654.44/x
  3. Step 3: Cross multiply
    1,143,913.40x = 1,578,547.64 × 627,654.44
  4. Step 4: Simplify right side
    1,143,913.40x = 990,782,434,997.52
  5. Step 5: Solve for x
    x = 990,782,434,997.52/1,143,913.40
  6. Step 6: Final answer
    x = 866,134.13

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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.