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Finding the Fourth Proportional to 452,693.16, 678,986.69 and 153,172.85

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Solution

The fourth proportional to 452,693.16, 678,986.69 and 153,172.85 is: 229,741.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    452,693.16 : 678,986.69 = 153,172.85 : x
  2. Step 2: Convert to fraction form
    452,693.16/678,986.69 = 153,172.85/x
  3. Step 3: Cross multiply
    452,693.16x = 678,986.69 × 153,172.85
  4. Step 4: Simplify right side
    452,693.16x = 104,002,322,258.57
  5. Step 5: Solve for x
    x = 104,002,322,258.57/452,693.16
  6. Step 6: Final answer
    x = 229,741.32

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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.