Home / 749,854.35-1,034,796.20-405,689.17

Finding the Fourth Proportional to 749,854.35, 1,034,796.20 and 405,689.17

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Solution

The fourth proportional to 749,854.35, 1,034,796.20 and 405,689.17 is: 559,849.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    749,854.35 : 1,034,796.20 = 405,689.17 : x
  2. Step 2: Convert to fraction form
    749,854.35/1,034,796.20 = 405,689.17/x
  3. Step 3: Cross multiply
    749,854.35x = 1,034,796.20 × 405,689.17
  4. Step 4: Simplify right side
    749,854.35x = 419,805,609,468.71
  5. Step 5: Solve for x
    x = 419,805,609,468.71/749,854.35
  6. Step 6: Final answer
    x = 559,849.54

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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.