Home / 806,985.18-1,113,617.43-462,878.82

Finding the Fourth Proportional to 806,985.18, 1,113,617.43 and 462,878.82

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Solution

The fourth proportional to 806,985.18, 1,113,617.43 and 462,878.82 is: 638,760.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    806,985.18 : 1,113,617.43 = 462,878.82 : x
  2. Step 2: Convert to fraction form
    806,985.18/1,113,617.43 = 462,878.82/x
  3. Step 3: Cross multiply
    806,985.18x = 1,113,617.43 × 462,878.82
  4. Step 4: Simplify right side
    806,985.18x = 515,469,921,929.83
  5. Step 5: Solve for x
    x = 515,469,921,929.83/806,985.18
  6. Step 6: Final answer
    x = 638,760.08

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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.