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Finding the Fourth Proportional to 340,931.62, 470,506.77 and 187,969.53

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Solution

The fourth proportional to 340,931.62, 470,506.77 and 187,969.53 is: 259,409.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,931.62 : 470,506.77 = 187,969.53 : x
  2. Step 2: Convert to fraction form
    340,931.62/470,506.77 = 187,969.53/x
  3. Step 3: Cross multiply
    340,931.62x = 470,506.77 × 187,969.53
  4. Step 4: Simplify right side
    340,931.62x = 88,440,937,830.68
  5. Step 5: Solve for x
    x = 88,440,937,830.68/340,931.62
  6. Step 6: Final answer
    x = 259,409.61

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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.