Home / 819,699.39-1,131,182.96-457,123.66

Finding the Fourth Proportional to 819,699.39, 1,131,182.96 and 457,123.66

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Solution

The fourth proportional to 819,699.39, 1,131,182.96 and 457,123.66 is: 630,829.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    819,699.39 : 1,131,182.96 = 457,123.66 : x
  2. Step 2: Convert to fraction form
    819,699.39/1,131,182.96 = 457,123.66/x
  3. Step 3: Cross multiply
    819,699.39x = 1,131,182.96 × 457,123.66
  4. Step 4: Simplify right side
    819,699.39x = 517,090,494,804.83
  5. Step 5: Solve for x
    x = 517,090,494,804.83/819,699.39
  6. Step 6: Final answer
    x = 630,829.42

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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.