Home / 913,253.66-1,369,889.88-407,840.36

Finding the Fourth Proportional to 913,253.66, 1,369,889.88 and 407,840.36

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Solution

The fourth proportional to 913,253.66, 1,369,889.88 and 407,840.36 is: 611,764.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    913,253.66 : 1,369,889.88 = 407,840.36 : x
  2. Step 2: Convert to fraction form
    913,253.66/1,369,889.88 = 407,840.36/x
  3. Step 3: Cross multiply
    913,253.66x = 1,369,889.88 × 407,840.36
  4. Step 4: Simplify right side
    913,253.66x = 558,696,381,819.56
  5. Step 5: Solve for x
    x = 558,696,381,819.56/913,253.66
  6. Step 6: Final answer
    x = 611,764.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.