Home / 1,230,449.08-1,698,014.20-686,553.12

Finding the Fourth Proportional to 1,230,449.08, 1,698,014.20 and 686,553.12

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Solution

The fourth proportional to 1,230,449.08, 1,698,014.20 and 686,553.12 is: 947,440.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,230,449.08 : 1,698,014.20 = 686,553.12 : x
  2. Step 2: Convert to fraction form
    1,230,449.08/1,698,014.20 = 686,553.12/x
  3. Step 3: Cross multiply
    1,230,449.08x = 1,698,014.20 × 686,553.12
  4. Step 4: Simplify right side
    1,230,449.08x = 1,165,776,946,814.30
  5. Step 5: Solve for x
    x = 1,165,776,946,814.30/1,230,449.08
  6. Step 6: Final answer
    x = 947,440.22

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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.