Home / 812,570.96-1,121,714.72-522,603.92

Finding the Fourth Proportional to 812,570.96, 1,121,714.72 and 522,603.92

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Solution

The fourth proportional to 812,570.96, 1,121,714.72 and 522,603.92 is: 721,429.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    812,570.96 : 1,121,714.72 = 522,603.92 : x
  2. Step 2: Convert to fraction form
    812,570.96/1,121,714.72 = 522,603.92/x
  3. Step 3: Cross multiply
    812,570.96x = 1,121,714.72 × 522,603.92
  4. Step 4: Simplify right side
    812,570.96x = 586,212,501,572.11
  5. Step 5: Solve for x
    x = 586,212,501,572.11/812,570.96
  6. Step 6: Final answer
    x = 721,429.31

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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.