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Finding the Fourth Proportional to 318,841.94, 440,005.02 and 175,606.40

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Solution

The fourth proportional to 318,841.94, 440,005.02 and 175,606.40 is: 242,338.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,841.94 : 440,005.02 = 175,606.40 : x
  2. Step 2: Convert to fraction form
    318,841.94/440,005.02 = 175,606.40/x
  3. Step 3: Cross multiply
    318,841.94x = 440,005.02 × 175,606.40
  4. Step 4: Simplify right side
    318,841.94x = 77,267,697,544.13
  5. Step 5: Solve for x
    x = 77,267,697,544.13/318,841.94
  6. Step 6: Final answer
    x = 242,338.56

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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.