Home / 826,617.21-1,239,925.77-265,695.45

Finding the Fourth Proportional to 826,617.21, 1,239,925.77 and 265,695.45

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Solution

The fourth proportional to 826,617.21, 1,239,925.77 and 265,695.45 is: 398,543.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    826,617.21 : 1,239,925.77 = 265,695.45 : x
  2. Step 2: Convert to fraction form
    826,617.21/1,239,925.77 = 265,695.45/x
  3. Step 3: Cross multiply
    826,617.21x = 1,239,925.77 × 265,695.45
  4. Step 4: Simplify right side
    826,617.21x = 329,442,635,426.75
  5. Step 5: Solve for x
    x = 329,442,635,426.75/826,617.21
  6. Step 6: Final answer
    x = 398,543.16

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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.