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Finding the Fourth Proportional to 977,661.20, 1,466,491.80 and 416,622.80

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Solution

The fourth proportional to 977,661.20, 1,466,491.80 and 416,622.80 is: 624,934.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    977,661.20 : 1,466,491.80 = 416,622.80 : x
  2. Step 2: Convert to fraction form
    977,661.20/1,466,491.80 = 416,622.80/x
  3. Step 3: Cross multiply
    977,661.20x = 1,466,491.80 × 416,622.80
  4. Step 4: Simplify right side
    977,661.20x = 610,973,919,893.04
  5. Step 5: Solve for x
    x = 610,973,919,893.04/977,661.20
  6. Step 6: Final answer
    x = 624,934.20

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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.