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Finding the Fourth Proportional to 417,748.40, 626,622.60 and 410,836.40

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Solution

The fourth proportional to 417,748.40, 626,622.60 and 410,836.40 is: 616,254.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    417,748.40 : 626,622.60 = 410,836.40 : x
  2. Step 2: Convert to fraction form
    417,748.40/626,622.60 = 410,836.40/x
  3. Step 3: Cross multiply
    417,748.40x = 626,622.60 × 410,836.40
  4. Step 4: Simplify right side
    417,748.40x = 257,439,373,142.64
  5. Step 5: Solve for x
    x = 257,439,373,142.64/417,748.40
  6. Step 6: Final answer
    x = 616,254.60

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Double scale
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Similar ratio
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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.