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Finding the Fourth Proportional to 310,994.53, 429,144.55 and 175,039.27

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Solution

The fourth proportional to 310,994.53, 429,144.55 and 175,039.27 is: 241,538.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,994.53 : 429,144.55 = 175,039.27 : x
  2. Step 2: Convert to fraction form
    310,994.53/429,144.55 = 175,039.27/x
  3. Step 3: Cross multiply
    310,994.53x = 429,144.55 × 175,039.27
  4. Step 4: Simplify right side
    310,994.53x = 75,117,148,756.48
  5. Step 5: Solve for x
    x = 75,117,148,756.48/310,994.53
  6. Step 6: Final answer
    x = 241,538.49

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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.