Home / 1,143,384.96-1,577,860.50-627,128.28

Finding the Fourth Proportional to 1,143,384.96, 1,577,860.50 and 627,128.28

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Solution

The fourth proportional to 1,143,384.96, 1,577,860.50 and 627,128.28 is: 865,431.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,143,384.96 : 1,577,860.50 = 627,128.28 : x
  2. Step 2: Convert to fraction form
    1,143,384.96/1,577,860.50 = 627,128.28/x
  3. Step 3: Cross multiply
    1,143,384.96x = 1,577,860.50 × 627,128.28
  4. Step 4: Simplify right side
    1,143,384.96x = 989,520,941,444.94
  5. Step 5: Solve for x
    x = 989,520,941,444.94/1,143,384.96
  6. Step 6: Final answer
    x = 865,431.13

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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.