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Finding the Fourth Proportional to 294,501.21, 406,400.90 and 179,971.55

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Solution

The fourth proportional to 294,501.21, 406,400.90 and 179,971.55 is: 248,354.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    294,501.21 : 406,400.90 = 179,971.55 : x
  2. Step 2: Convert to fraction form
    294,501.21/406,400.90 = 179,971.55/x
  3. Step 3: Cross multiply
    294,501.21x = 406,400.90 × 179,971.55
  4. Step 4: Simplify right side
    294,501.21x = 73,140,599,894.40
  5. Step 5: Solve for x
    x = 73,140,599,894.40/294,501.21
  6. Step 6: Final answer
    x = 248,354.16

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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.