Home / 1,185,937.20-1,636,573.56-642,068.57

Finding the Fourth Proportional to 1,185,937.20, 1,636,573.56 and 642,068.57

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Solution

The fourth proportional to 1,185,937.20, 1,636,573.56 and 642,068.57 is: 886,043.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,185,937.20 : 1,636,573.56 = 642,068.57 : x
  2. Step 2: Convert to fraction form
    1,185,937.20/1,636,573.56 = 642,068.57/x
  3. Step 3: Cross multiply
    1,185,937.20x = 1,636,573.56 × 642,068.57
  4. Step 4: Simplify right side
    1,185,937.20x = 1,050,792,450,664.32
  5. Step 5: Solve for x
    x = 1,050,792,450,664.32/1,185,937.20
  6. Step 6: Final answer
    x = 886,043.92

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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.