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Finding the Fourth Proportional to 556,631.20, 835,141.20 and 201,656.80

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Solution

The fourth proportional to 556,631.20, 835,141.20 and 201,656.80 is: 302,555.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,631.20 : 835,141.20 = 201,656.80 : x
  2. Step 2: Convert to fraction form
    556,631.20/835,141.20 = 201,656.80/x
  3. Step 3: Cross multiply
    556,631.20x = 835,141.20 × 201,656.80
  4. Step 4: Simplify right side
    556,631.20x = 168,411,901,940.16
  5. Step 5: Solve for x
    x = 168,411,901,940.16/556,631.20
  6. Step 6: Final answer
    x = 302,555.63

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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.