Home / 1,230,643.29-1,698,372.99-686,885.16

Finding the Fourth Proportional to 1,230,643.29, 1,698,372.99 and 686,885.16

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Solution

The fourth proportional to 1,230,643.29, 1,698,372.99 and 686,885.16 is: 947,949.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,230,643.29 : 1,698,372.99 = 686,885.16 : x
  2. Step 2: Convert to fraction form
    1,230,643.29/1,698,372.99 = 686,885.16/x
  3. Step 3: Cross multiply
    1,230,643.29x = 1,698,372.99 × 686,885.16
  4. Step 4: Simplify right side
    1,230,643.29x = 1,166,587,202,975.83
  5. Step 5: Solve for x
    x = 1,166,587,202,975.83/1,230,643.29
  6. Step 6: Final answer
    x = 947,949.10

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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.