Home / 866,054.52-1,299,344.22-392,612.76

Finding the Fourth Proportional to 866,054.52, 1,299,344.22 and 392,612.76

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Solution

The fourth proportional to 866,054.52, 1,299,344.22 and 392,612.76 is: 589,038.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    866,054.52 : 1,299,344.22 = 392,612.76 : x
  2. Step 2: Convert to fraction form
    866,054.52/1,299,344.22 = 392,612.76/x
  3. Step 3: Cross multiply
    866,054.52x = 1,299,344.22 × 392,612.76
  4. Step 4: Simplify right side
    866,054.52x = 510,139,120,404.25
  5. Step 5: Solve for x
    x = 510,139,120,404.25/866,054.52
  6. Step 6: Final answer
    x = 589,038.11

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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.