Home / 812,569.46-1,121,712.64-522,602.42

Finding the Fourth Proportional to 812,569.46, 1,121,712.64 and 522,602.42

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Solution

The fourth proportional to 812,569.46, 1,121,712.64 and 522,602.42 is: 721,427.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    812,569.46 : 1,121,712.64 = 522,602.42 : x
  2. Step 2: Convert to fraction form
    812,569.46/1,121,712.64 = 522,602.42/x
  3. Step 3: Cross multiply
    812,569.46x = 1,121,712.64 × 522,602.42
  4. Step 4: Simplify right side
    812,569.46x = 586,209,733,293.52
  5. Step 5: Solve for x
    x = 586,209,733,293.52/812,569.46
  6. Step 6: Final answer
    x = 721,427.23

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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.