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Finding the Fourth Proportional to 416,133.40, 624,200.10 and 346,091.80

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Solution

The fourth proportional to 416,133.40, 624,200.10 and 346,091.80 is: 519,137.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    416,133.40 : 624,200.10 = 346,091.80 : x
  2. Step 2: Convert to fraction form
    416,133.40/624,200.10 = 346,091.80/x
  3. Step 3: Cross multiply
    416,133.40x = 624,200.10 × 346,091.80
  4. Step 4: Simplify right side
    416,133.40x = 216,030,536,169.18
  5. Step 5: Solve for x
    x = 216,030,536,169.18/416,133.40
  6. Step 6: Final answer
    x = 519,137.70

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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.