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Finding the Fourth Proportional to 352,666.20, 528,999.30 and 186,778.20

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Solution

The fourth proportional to 352,666.20, 528,999.30 and 186,778.20 is: 280,167.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,666.20 : 528,999.30 = 186,778.20 : x
  2. Step 2: Convert to fraction form
    352,666.20/528,999.30 = 186,778.20/x
  3. Step 3: Cross multiply
    352,666.20x = 528,999.30 × 186,778.20
  4. Step 4: Simplify right side
    352,666.20x = 98,805,537,055.26
  5. Step 5: Solve for x
    x = 98,805,537,055.26/352,666.20
  6. Step 6: Final answer
    x = 280,167.30

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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.