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Finding the Fourth Proportional to 385,533.99, 532,036.83 and 215,768.12

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Solution

The fourth proportional to 385,533.99, 532,036.83 and 215,768.12 is: 297,759.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,533.99 : 532,036.83 = 215,768.12 : x
  2. Step 2: Convert to fraction form
    385,533.99/532,036.83 = 215,768.12/x
  3. Step 3: Cross multiply
    385,533.99x = 532,036.83 × 215,768.12
  4. Step 4: Simplify right side
    385,533.99x = 114,796,584,728.81
  5. Step 5: Solve for x
    x = 114,796,584,728.81/385,533.99
  6. Step 6: Final answer
    x = 297,759.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.