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Finding the Fourth Proportional to 319,048.56, 440,308.32 and 175,808.58

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Solution

The fourth proportional to 319,048.56, 440,308.32 and 175,808.58 is: 242,627.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,048.56 : 440,308.32 = 175,808.58 : x
  2. Step 2: Convert to fraction form
    319,048.56/440,308.32 = 175,808.58/x
  3. Step 3: Cross multiply
    319,048.56x = 440,308.32 × 175,808.58
  4. Step 4: Simplify right side
    319,048.56x = 77,409,980,501.39
  5. Step 5: Solve for x
    x = 77,409,980,501.39/319,048.56
  6. Step 6: Final answer
    x = 242,627.58

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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.