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Finding the Fourth Proportional to 475,984.08, 656,866.80 and 261,111.06

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Solution

The fourth proportional to 475,984.08, 656,866.80 and 261,111.06 is: 360,338.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    475,984.08 : 656,866.80 = 261,111.06 : x
  2. Step 2: Convert to fraction form
    475,984.08/656,866.80 = 261,111.06/x
  3. Step 3: Cross multiply
    475,984.08x = 656,866.80 × 261,111.06
  4. Step 4: Simplify right side
    475,984.08x = 171,515,186,426.81
  5. Step 5: Solve for x
    x = 171,515,186,426.81/475,984.08
  6. Step 6: Final answer
    x = 360,338.07

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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.