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Finding the Fourth Proportional to 604,417.80, 906,626.70 and 363,880.20

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Solution

The fourth proportional to 604,417.80, 906,626.70 and 363,880.20 is: 545,820.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    604,417.80 : 906,626.70 = 363,880.20 : x
  2. Step 2: Convert to fraction form
    604,417.80/906,626.70 = 363,880.20/x
  3. Step 3: Cross multiply
    604,417.80x = 906,626.70 × 363,880.20
  4. Step 4: Simplify right side
    604,417.80x = 329,903,504,921.34
  5. Step 5: Solve for x
    x = 329,903,504,921.34/604,417.80
  6. Step 6: Final answer
    x = 545,820.30

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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.