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Finding the Fourth Proportional to 470,015.70, 705,023.55 and 376,703.70

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Solution

The fourth proportional to 470,015.70, 705,023.55 and 376,703.70 is: 565,055.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    470,015.70 : 705,023.55 = 376,703.70 : x
  2. Step 2: Convert to fraction form
    470,015.70/705,023.55 = 376,703.70/x
  3. Step 3: Cross multiply
    470,015.70x = 705,023.55 × 376,703.70
  4. Step 4: Simplify right side
    470,015.70x = 265,584,979,872.14
  5. Step 5: Solve for x
    x = 265,584,979,872.14/470,015.70
  6. Step 6: Final answer
    x = 565,055.55

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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.