Home / 826,000.34-1,139,949.18-458,512.07

Finding the Fourth Proportional to 826,000.34, 1,139,949.18 and 458,512.07

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Solution

The fourth proportional to 826,000.34, 1,139,949.18 and 458,512.07 is: 632,784.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    826,000.34 : 1,139,949.18 = 458,512.07 : x
  2. Step 2: Convert to fraction form
    826,000.34/1,139,949.18 = 458,512.07/x
  3. Step 3: Cross multiply
    826,000.34x = 1,139,949.18 × 458,512.07
  4. Step 4: Simplify right side
    826,000.34x = 522,680,452,516.86
  5. Step 5: Solve for x
    x = 522,680,452,516.86/826,000.34
  6. Step 6: Final answer
    x = 632,784.79

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1.5x scale

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.