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Finding the Fourth Proportional to 314,673.85, 434,250.45 and 178,707.76

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Solution

The fourth proportional to 314,673.85, 434,250.45 and 178,707.76 is: 246,617.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    314,673.85 : 434,250.45 = 178,707.76 : x
  2. Step 2: Convert to fraction form
    314,673.85/434,250.45 = 178,707.76/x
  3. Step 3: Cross multiply
    314,673.85x = 434,250.45 × 178,707.76
  4. Step 4: Simplify right side
    314,673.85x = 77,603,925,198.49
  5. Step 5: Solve for x
    x = 77,603,925,198.49/314,673.85
  6. Step 6: Final answer
    x = 246,617.01

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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.