Home / 1,005,955-1,387,515.21-683,104.59

Finding the Fourth Proportional to 1,005,955, 1,387,515.21 and 683,104.59

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Solution

The fourth proportional to 1,005,955, 1,387,515.21 and 683,104.59 is: 942,207.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,005,955 : 1,387,515.21 = 683,104.59 : x
  2. Step 2: Convert to fraction form
    1,005,955/1,387,515.21 = 683,104.59/x
  3. Step 3: Cross multiply
    1,005,955x = 1,387,515.21 × 683,104.59
  4. Step 4: Simplify right side
    1,005,955x = 947,818,008,645.81
  5. Step 5: Solve for x
    x = 947,818,008,645.81/1,005,955
  6. Step 6: Final answer
    x = 942,207.16

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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.