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Finding the Fourth Proportional to 319,417.56, 440,798.58 and 176,173.92

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Solution

The fourth proportional to 319,417.56, 440,798.58 and 176,173.92 is: 243,121.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,417.56 : 440,798.58 = 176,173.92 : x
  2. Step 2: Convert to fraction form
    319,417.56/440,798.58 = 176,173.92/x
  3. Step 3: Cross multiply
    319,417.56x = 440,798.58 × 176,173.92
  4. Step 4: Simplify right side
    319,417.56x = 77,657,213,769.03
  5. Step 5: Solve for x
    x = 77,657,213,769.03/319,417.56
  6. Step 6: Final answer
    x = 243,121.30

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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.