Home / 819,703.64-1,131,188.83-457,127.91

Finding the Fourth Proportional to 819,703.64, 1,131,188.83 and 457,127.91

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Solution

The fourth proportional to 819,703.64, 1,131,188.83 and 457,127.91 is: 630,835.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    819,703.64 : 1,131,188.83 = 457,127.91 : x
  2. Step 2: Convert to fraction form
    819,703.64/1,131,188.83 = 457,127.91/x
  3. Step 3: Cross multiply
    819,703.64x = 1,131,188.83 × 457,127.91
  4. Step 4: Simplify right side
    819,703.64x = 517,097,984,530.43
  5. Step 5: Solve for x
    x = 517,097,984,530.43/819,703.64
  6. Step 6: Final answer
    x = 630,835.29

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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.