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Finding the Fourth Proportional to 873,888.94, 1,310,833.41 and 499,649.50

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Solution

The fourth proportional to 873,888.94, 1,310,833.41 and 499,649.50 is: 749,474.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    873,888.94 : 1,310,833.41 = 499,649.50 : x
  2. Step 2: Convert to fraction form
    873,888.94/1,310,833.41 = 499,649.50/x
  3. Step 3: Cross multiply
    873,888.94x = 1,310,833.41 × 499,649.50
  4. Step 4: Simplify right side
    873,888.94x = 654,957,257,889.80
  5. Step 5: Solve for x
    x = 654,957,257,889.80/873,888.94
  6. Step 6: Final answer
    x = 749,474.25

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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 (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.