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Finding the Fourth Proportional to 352,640.10, 528,085.35 and 282,656.10

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Solution

The fourth proportional to 352,640.10, 528,085.35 and 282,656.10 is: 423,282.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,640.10 : 528,085.35 = 282,656.10 : x
  2. Step 2: Convert to fraction form
    352,640.10/528,085.35 = 282,656.10/x
  3. Step 3: Cross multiply
    352,640.10x = 528,085.35 × 282,656.10
  4. Step 4: Simplify right side
    352,640.10x = 149,266,545,498.14
  5. Step 5: Solve for x
    x = 149,266,545,498.14/352,640.10
  6. Step 6: Final answer
    x = 423,282.96

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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.