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Finding the Fourth Proportional to 456,486.70, 684,730.05 and 448,710.70

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Solution

The fourth proportional to 456,486.70, 684,730.05 and 448,710.70 is: 673,066.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    456,486.70 : 684,730.05 = 448,710.70 : x
  2. Step 2: Convert to fraction form
    456,486.70/684,730.05 = 448,710.70/x
  3. Step 3: Cross multiply
    456,486.70x = 684,730.05 × 448,710.70
  4. Step 4: Simplify right side
    456,486.70x = 307,245,700,046.54
  5. Step 5: Solve for x
    x = 307,245,700,046.54/456,486.70
  6. Step 6: Final answer
    x = 673,066.05

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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.