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Finding the Fourth Proportional to 310,289.16, 465,196.94 and 160,433.78

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Solution

The fourth proportional to 310,289.16, 465,196.94 and 160,433.78 is: 240,528.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,289.16 : 465,196.94 = 160,433.78 : x
  2. Step 2: Convert to fraction form
    310,289.16/465,196.94 = 160,433.78/x
  3. Step 3: Cross multiply
    310,289.16x = 465,196.94 × 160,433.78
  4. Step 4: Simplify right side
    310,289.16x = 74,633,303,528.63
  5. Step 5: Solve for x
    x = 74,633,303,528.63/310,289.16
  6. Step 6: Final answer
    x = 240,528.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.