Home / 1,185,956.60-1,636,632.92-642,103.68

Finding the Fourth Proportional to 1,185,956.60, 1,636,632.92 and 642,103.68

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Solution

The fourth proportional to 1,185,956.60, 1,636,632.92 and 642,103.68 is: 886,110.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,185,956.60 : 1,636,632.92 = 642,103.68 : x
  2. Step 2: Convert to fraction form
    1,185,956.60/1,636,632.92 = 642,103.68/x
  3. Step 3: Cross multiply
    1,185,956.60x = 1,636,632.92 × 642,103.68
  4. Step 4: Simplify right side
    1,185,956.60x = 1,050,888,020,741.15
  5. Step 5: Solve for x
    x = 1,050,888,020,741.15/1,185,956.60
  6. Step 6: Final answer
    x = 886,110.02

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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.