Home / 1,186,306.08-1,637,099.89-642,440.19

Finding the Fourth Proportional to 1,186,306.08, 1,637,099.89 and 642,440.19

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Solution

The fourth proportional to 1,186,306.08, 1,637,099.89 and 642,440.19 is: 886,566.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,186,306.08 : 1,637,099.89 = 642,440.19 : x
  2. Step 2: Convert to fraction form
    1,186,306.08/1,637,099.89 = 642,440.19/x
  3. Step 3: Cross multiply
    1,186,306.08x = 1,637,099.89 × 642,440.19
  4. Step 4: Simplify right side
    1,186,306.08x = 1,051,738,762,774.48
  5. Step 5: Solve for x
    x = 1,051,738,762,774.48/1,186,306.08
  6. Step 6: Final answer
    x = 886,566.11

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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.