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Finding the Fourth Proportional to 496,887.40, 745,331.10 and 346,810.60

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Solution

The fourth proportional to 496,887.40, 745,331.10 and 346,810.60 is: 520,215.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    496,887.40 : 745,331.10 = 346,810.60 : x
  2. Step 2: Convert to fraction form
    496,887.40/745,331.10 = 346,810.60/x
  3. Step 3: Cross multiply
    496,887.40x = 745,331.10 × 346,810.60
  4. Step 4: Simplify right side
    496,887.40x = 258,488,725,989.66
  5. Step 5: Solve for x
    x = 258,488,725,989.66/496,887.40
  6. Step 6: Final answer
    x = 520,215.90

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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.