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Finding the Fourth Proportional to 318,532.45, 439,574.84 and 175,292.49

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Solution

The fourth proportional to 318,532.45, 439,574.84 and 175,292.49 is: 241,903.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,532.45 : 439,574.84 = 175,292.49 : x
  2. Step 2: Convert to fraction form
    318,532.45/439,574.84 = 175,292.49/x
  3. Step 3: Cross multiply
    318,532.45x = 439,574.84 × 175,292.49
  4. Step 4: Simplify right side
    318,532.45x = 77,054,167,119.46
  5. Step 5: Solve for x
    x = 77,054,167,119.46/318,532.45
  6. Step 6: Final answer
    x = 241,903.67

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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.