Home / 905,593.06-1,249,714.24-518,406.35

Finding the Fourth Proportional to 905,593.06, 1,249,714.24 and 518,406.35

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Solution

The fourth proportional to 905,593.06, 1,249,714.24 and 518,406.35 is: 715,398.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    905,593.06 : 1,249,714.24 = 518,406.35 : x
  2. Step 2: Convert to fraction form
    905,593.06/1,249,714.24 = 518,406.35/x
  3. Step 3: Cross multiply
    905,593.06x = 1,249,714.24 × 518,406.35
  4. Step 4: Simplify right side
    905,593.06x = 647,859,790,156.84
  5. Step 5: Solve for x
    x = 647,859,790,156.84/905,593.06
  6. Step 6: Final answer
    x = 715,398.36

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Double scale
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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.