Home / 819,252.72-1,130,105.70-512,797.06

Finding the Fourth Proportional to 819,252.72, 1,130,105.70 and 512,797.06

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Solution

The fourth proportional to 819,252.72, 1,130,105.70 and 512,797.06 is: 707,370.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    819,252.72 : 1,130,105.70 = 512,797.06 : x
  2. Step 2: Convert to fraction form
    819,252.72/1,130,105.70 = 512,797.06/x
  3. Step 3: Cross multiply
    819,252.72x = 1,130,105.70 × 512,797.06
  4. Step 4: Simplify right side
    819,252.72x = 579,514,880,449.24
  5. Step 5: Solve for x
    x = 579,514,880,449.24/819,252.72
  6. Step 6: Final answer
    x = 707,370.10

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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.