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Finding the Fourth Proportional to 468,035.70, 702,053.55 and 438,511.20

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Solution

The fourth proportional to 468,035.70, 702,053.55 and 438,511.20 is: 657,766.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    468,035.70 : 702,053.55 = 438,511.20 : x
  2. Step 2: Convert to fraction form
    468,035.70/702,053.55 = 438,511.20/x
  3. Step 3: Cross multiply
    468,035.70x = 702,053.55 × 438,511.20
  4. Step 4: Simplify right side
    468,035.70x = 307,858,344,674.76
  5. Step 5: Solve for x
    x = 307,858,344,674.76/468,035.70
  6. Step 6: Final answer
    x = 657,766.80

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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.