Home / 1,186,417.70-1,637,247.06-642,540.98

Finding the Fourth Proportional to 1,186,417.70, 1,637,247.06 and 642,540.98

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Solution

The fourth proportional to 1,186,417.70, 1,637,247.06 and 642,540.98 is: 886,701.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,186,417.70 : 1,637,247.06 = 642,540.98 : x
  2. Step 2: Convert to fraction form
    1,186,417.70/1,637,247.06 = 642,540.98/x
  3. Step 3: Cross multiply
    1,186,417.70x = 1,637,247.06 × 642,540.98
  4. Step 4: Simplify right side
    1,186,417.70x = 1,051,998,330,434.52
  5. Step 5: Solve for x
    x = 1,051,998,330,434.52/1,186,417.70
  6. Step 6: Final answer
    x = 886,701.48

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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.