Home / 1,186,398.83-1,637,221.01-642,522.11

Finding the Fourth Proportional to 1,186,398.83, 1,637,221.01 and 642,522.11

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Solution

The fourth proportional to 1,186,398.83, 1,637,221.01 and 642,522.11 is: 886,675.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,186,398.83 : 1,637,221.01 = 642,522.11 : x
  2. Step 2: Convert to fraction form
    1,186,398.83/1,637,221.01 = 642,522.11/x
  3. Step 3: Cross multiply
    1,186,398.83x = 1,637,221.01 × 642,522.11
  4. Step 4: Simplify right side
    1,186,398.83x = 1,051,950,686,482.82
  5. Step 5: Solve for x
    x = 1,051,950,686,482.82/1,186,398.83
  6. Step 6: Final answer
    x = 886,675.42

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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.