Home / 1,296,203.28-1,788,261.63-811,925.34

Finding the Fourth Proportional to 1,296,203.28, 1,788,261.63 and 811,925.34

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Solution

The fourth proportional to 1,296,203.28, 1,788,261.63 and 811,925.34 is: 1,120,144.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,296,203.28 : 1,788,261.63 = 811,925.34 : x
  2. Step 2: Convert to fraction form
    1,296,203.28/1,788,261.63 = 811,925.34/x
  3. Step 3: Cross multiply
    1,296,203.28x = 1,788,261.63 × 811,925.34
  4. Step 4: Simplify right side
    1,296,203.28x = 1,451,934,931,946.70
  5. Step 5: Solve for x
    x = 1,451,934,931,946.70/1,296,203.28
  6. Step 6: Final answer
    x = 1,120,144.47

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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.