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Finding the Fourth Proportional to 294,626.67, 406,571.68 and 172,130.40

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Solution

The fourth proportional to 294,626.67, 406,571.68 and 172,130.40 is: 237,532.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    294,626.67 : 406,571.68 = 172,130.40 : x
  2. Step 2: Convert to fraction form
    294,626.67/406,571.68 = 172,130.40/x
  3. Step 3: Cross multiply
    294,626.67x = 406,571.68 × 172,130.40
  4. Step 4: Simplify right side
    294,626.67x = 69,983,345,907.07
  5. Step 5: Solve for x
    x = 69,983,345,907.07/294,626.67
  6. Step 6: Final answer
    x = 237,532.28

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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.