Home / 825,513.42-1,139,233.44-462,970.80

Finding the Fourth Proportional to 825,513.42, 1,139,233.44 and 462,970.80

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Solution

The fourth proportional to 825,513.42, 1,139,233.44 and 462,970.80 is: 638,913.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    825,513.42 : 1,139,233.44 = 462,970.80 : x
  2. Step 2: Convert to fraction form
    825,513.42/1,139,233.44 = 462,970.80/x
  3. Step 3: Cross multiply
    825,513.42x = 1,139,233.44 × 462,970.80
  4. Step 4: Simplify right side
    825,513.42x = 527,431,817,103.55
  5. Step 5: Solve for x
    x = 527,431,817,103.55/825,513.42
  6. Step 6: Final answer
    x = 638,913.68

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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.