Home / 1,186,071.20-1,636,779.18-642,207.44

Finding the Fourth Proportional to 1,186,071.20, 1,636,779.18 and 642,207.44

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Solution

The fourth proportional to 1,186,071.20, 1,636,779.18 and 642,207.44 is: 886,246.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,186,071.20 : 1,636,779.18 = 642,207.44 : x
  2. Step 2: Convert to fraction form
    1,186,071.20/1,636,779.18 = 642,207.44/x
  3. Step 3: Cross multiply
    1,186,071.20x = 1,636,779.18 × 642,207.44
  4. Step 4: Simplify right side
    1,186,071.20x = 1,051,151,767,033.10
  5. Step 5: Solve for x
    x = 1,051,151,767,033.10/1,186,071.20
  6. Step 6: Final answer
    x = 886,246.77

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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.