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Finding the Fourth Proportional to 319,443.16, 440,829.48 and 174,256.96

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Solution

The fourth proportional to 319,443.16, 440,829.48 and 174,256.96 is: 240,473.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,443.16 : 440,829.48 = 174,256.96 : x
  2. Step 2: Convert to fraction form
    319,443.16/440,829.48 = 174,256.96/x
  3. Step 3: Cross multiply
    319,443.16x = 440,829.48 × 174,256.96
  4. Step 4: Simplify right side
    319,443.16x = 76,817,605,063.18
  5. Step 5: Solve for x
    x = 76,817,605,063.18/319,443.16
  6. Step 6: Final answer
    x = 240,473.47

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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.