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Finding the Fourth Proportional to 416,489.81, 624,734.72 and 100,946.72

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Solution

The fourth proportional to 416,489.81, 624,734.72 and 100,946.72 is: 151,420.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    416,489.81 : 624,734.72 = 100,946.72 : x
  2. Step 2: Convert to fraction form
    416,489.81/624,734.72 = 100,946.72/x
  3. Step 3: Cross multiply
    416,489.81x = 624,734.72 × 100,946.72
  4. Step 4: Simplify right side
    416,489.81x = 63,064,920,854.12
  5. Step 5: Solve for x
    x = 63,064,920,854.12/416,489.81
  6. Step 6: Final answer
    x = 151,420.08

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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.