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Finding the Fourth Proportional to 556,632.20, 835,142.70 and 201,657.80

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Solution

The fourth proportional to 556,632.20, 835,142.70 and 201,657.80 is: 302,557.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,632.20 : 835,142.70 = 201,657.80 : x
  2. Step 2: Convert to fraction form
    556,632.20/835,142.70 = 201,657.80/x
  3. Step 3: Cross multiply
    556,632.20x = 835,142.70 × 201,657.80
  4. Step 4: Simplify right side
    556,632.20x = 168,413,039,568.06
  5. Step 5: Solve for x
    x = 168,413,039,568.06/556,632.20
  6. Step 6: Final answer
    x = 302,557.13

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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.