Home / 873,618.76-1,205,394.43-491,506.12

Finding the Fourth Proportional to 873,618.76, 1,205,394.43 and 491,506.12

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Solution

The fourth proportional to 873,618.76, 1,205,394.43 and 491,506.12 is: 678,166.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    873,618.76 : 1,205,394.43 = 491,506.12 : x
  2. Step 2: Convert to fraction form
    873,618.76/1,205,394.43 = 491,506.12/x
  3. Step 3: Cross multiply
    873,618.76x = 1,205,394.43 × 491,506.12
  4. Step 4: Simplify right side
    873,618.76x = 592,458,739,358.91
  5. Step 5: Solve for x
    x = 592,458,739,358.91/873,618.76
  6. Step 6: Final answer
    x = 678,166.23

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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.