Home / 1,185,948.58-1,636,621.86-642,095.68

Finding the Fourth Proportional to 1,185,948.58, 1,636,621.86 and 642,095.68

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Solution

The fourth proportional to 1,185,948.58, 1,636,621.86 and 642,095.68 is: 886,098.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,185,948.58 : 1,636,621.86 = 642,095.68 : x
  2. Step 2: Convert to fraction form
    1,185,948.58/1,636,621.86 = 642,095.68/x
  3. Step 3: Cross multiply
    1,185,948.58x = 1,636,621.86 × 642,095.68
  4. Step 4: Simplify right side
    1,185,948.58x = 1,050,867,826,099.57
  5. Step 5: Solve for x
    x = 1,050,867,826,099.57/1,185,948.58
  6. Step 6: Final answer
    x = 886,098.98

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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.