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Finding the Fourth Proportional to 604,843.60, 907,265.40 and 424,440.40

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Solution

The fourth proportional to 604,843.60, 907,265.40 and 424,440.40 is: 636,660.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    604,843.60 : 907,265.40 = 424,440.40 : x
  2. Step 2: Convert to fraction form
    604,843.60/907,265.40 = 424,440.40/x
  3. Step 3: Cross multiply
    604,843.60x = 907,265.40 × 424,440.40
  4. Step 4: Simplify right side
    604,843.60x = 385,080,089,282.16
  5. Step 5: Solve for x
    x = 385,080,089,282.16/604,843.60
  6. Step 6: Final answer
    x = 636,660.60

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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.