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Finding the Fourth Proportional to 604,407.60, 906,611.40 and 539,089.20

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Solution

The fourth proportional to 604,407.60, 906,611.40 and 539,089.20 is: 808,633.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    604,407.60 : 906,611.40 = 539,089.20 : x
  2. Step 2: Convert to fraction form
    604,407.60/906,611.40 = 539,089.20/x
  3. Step 3: Cross multiply
    604,407.60x = 906,611.40 × 539,089.20
  4. Step 4: Simplify right side
    604,407.60x = 488,744,414,336.88
  5. Step 5: Solve for x
    x = 488,744,414,336.88/604,407.60
  6. Step 6: Final answer
    x = 808,633.80

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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.