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Finding the Fourth Proportional to 319,854.96, 441,400.50 and 176,615.28

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Solution

The fourth proportional to 319,854.96, 441,400.50 and 176,615.28 is: 243,729.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,854.96 : 441,400.50 = 176,615.28 : x
  2. Step 2: Convert to fraction form
    319,854.96/441,400.50 = 176,615.28/x
  3. Step 3: Cross multiply
    319,854.96x = 441,400.50 × 176,615.28
  4. Step 4: Simplify right side
    319,854.96x = 77,958,072,899.64
  5. Step 5: Solve for x
    x = 77,958,072,899.64/319,854.96
  6. Step 6: Final answer
    x = 243,729.45

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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.