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Finding the Fourth Proportional to 322,807.70, 484,211.55 and 291,703.70

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Solution

The fourth proportional to 322,807.70, 484,211.55 and 291,703.70 is: 437,555.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,807.70 : 484,211.55 = 291,703.70 : x
  2. Step 2: Convert to fraction form
    322,807.70/484,211.55 = 291,703.70/x
  3. Step 3: Cross multiply
    322,807.70x = 484,211.55 × 291,703.70
  4. Step 4: Simplify right side
    322,807.70x = 141,246,300,717.74
  5. Step 5: Solve for x
    x = 141,246,300,717.74/322,807.70
  6. Step 6: Final answer
    x = 437,555.55

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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.