Home / 1,186,053.34-1,636,746.72-642,177.90

Finding the Fourth Proportional to 1,186,053.34, 1,636,746.72 and 642,177.90

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Solution

The fourth proportional to 1,186,053.34, 1,636,746.72 and 642,177.90 is: 886,201.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,186,053.34 : 1,636,746.72 = 642,177.90 : x
  2. Step 2: Convert to fraction form
    1,186,053.34/1,636,746.72 = 642,177.90/x
  3. Step 3: Cross multiply
    1,186,053.34x = 1,636,746.72 × 642,177.90
  4. Step 4: Simplify right side
    1,186,053.34x = 1,051,082,571,481.49
  5. Step 5: Solve for x
    x = 1,051,082,571,481.49/1,186,053.34
  6. Step 6: Final answer
    x = 886,201.77

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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.