Home / 1,176,174-1,623,120.12-639,630

Finding the Fourth Proportional to 1,176,174, 1,623,120.12 and 639,630

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Solution

The fourth proportional to 1,176,174, 1,623,120.12 and 639,630 is: 882,689.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,176,174 : 1,623,120.12 = 639,630 : x
  2. Step 2: Convert to fraction form
    1,176,174/1,623,120.12 = 639,630/x
  3. Step 3: Cross multiply
    1,176,174x = 1,623,120.12 × 639,630
  4. Step 4: Simplify right side
    1,176,174x = 1,038,196,322,355.60
  5. Step 5: Solve for x
    x = 1,038,196,322,355.60/1,176,174
  6. Step 6: Final answer
    x = 882,689.40

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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.