Home / 1,186,417.83-1,637,256.09-642,553.64

Finding the Fourth Proportional to 1,186,417.83, 1,637,256.09 and 642,553.64

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Solution

The fourth proportional to 1,186,417.83, 1,637,256.09 and 642,553.64 is: 886,723.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,186,417.83 : 1,637,256.09 = 642,553.64 : x
  2. Step 2: Convert to fraction form
    1,186,417.83/1,637,256.09 = 642,553.64/x
  3. Step 3: Cross multiply
    1,186,417.83x = 1,637,256.09 × 642,553.64
  4. Step 4: Simplify right side
    1,186,417.83x = 1,052,024,862,746.30
  5. Step 5: Solve for x
    x = 1,052,024,862,746.30/1,186,417.83
  6. Step 6: Final answer
    x = 886,723.75

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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.