Home / 873,668.88-1,205,463.60-491,556.24

Finding the Fourth Proportional to 873,668.88, 1,205,463.60 and 491,556.24

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Solution

The fourth proportional to 873,668.88, 1,205,463.60 and 491,556.24 is: 678,235.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    873,668.88 : 1,205,463.60 = 491,556.24 : x
  2. Step 2: Convert to fraction form
    873,668.88/1,205,463.60 = 491,556.24/x
  3. Step 3: Cross multiply
    873,668.88x = 1,205,463.60 × 491,556.24
  4. Step 4: Simplify right side
    873,668.88x = 592,553,154,672.86
  5. Step 5: Solve for x
    x = 592,553,154,672.86/873,668.88
  6. Step 6: Final answer
    x = 678,235.39

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Double scale
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Similar ratio
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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.