Home / 671,394.10-926,719.51-438,854.83

Finding the Fourth Proportional to 671,394.10, 926,719.51 and 438,854.83

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Solution

The fourth proportional to 671,394.10, 926,719.51 and 438,854.83 is: 605,747.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    671,394.10 : 926,719.51 = 438,854.83 : x
  2. Step 2: Convert to fraction form
    671,394.10/926,719.51 = 438,854.83/x
  3. Step 3: Cross multiply
    671,394.10x = 926,719.51 × 438,854.83
  4. Step 4: Simplify right side
    671,394.10x = 406,695,333,018.73
  5. Step 5: Solve for x
    x = 406,695,333,018.73/671,394.10
  6. Step 6: Final answer
    x = 605,747.55

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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.