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Finding the Fourth Proportional to 319,178.01, 440,465.55 and 175,940.45

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Solution

The fourth proportional to 319,178.01, 440,465.55 and 175,940.45 is: 242,797.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,178.01 : 440,465.55 = 175,940.45 : x
  2. Step 2: Convert to fraction form
    319,178.01/440,465.55 = 175,940.45/x
  3. Step 3: Cross multiply
    319,178.01x = 440,465.55 × 175,940.45
  4. Step 4: Simplify right side
    319,178.01x = 77,495,707,076.50
  5. Step 5: Solve for x
    x = 77,495,707,076.50/319,178.01
  6. Step 6: Final answer
    x = 242,797.76

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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.