Home / 1,679,129.63-2,317,199.75-953,978.61

Finding the Fourth Proportional to 1,679,129.63, 2,317,199.75 and 953,978.61

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Solution

The fourth proportional to 1,679,129.63, 2,317,199.75 and 953,978.61 is: 1,316,490.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,679,129.63 : 2,317,199.75 = 953,978.61 : x
  2. Step 2: Convert to fraction form
    1,679,129.63/2,317,199.75 = 953,978.61/x
  3. Step 3: Cross multiply
    1,679,129.63x = 2,317,199.75 × 953,978.61
  4. Step 4: Simplify right side
    1,679,129.63x = 2,210,558,994,212.40
  5. Step 5: Solve for x
    x = 2,210,558,994,212.40/1,679,129.63
  6. Step 6: Final answer
    x = 1,316,490.97

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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.