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Finding the Fourth Proportional to 570,615.60, 855,923.40 and 404,727.60

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Solution

The fourth proportional to 570,615.60, 855,923.40 and 404,727.60 is: 607,091.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,615.60 : 855,923.40 = 404,727.60 : x
  2. Step 2: Convert to fraction form
    570,615.60/855,923.40 = 404,727.60/x
  3. Step 3: Cross multiply
    570,615.60x = 855,923.40 × 404,727.60
  4. Step 4: Simplify right side
    570,615.60x = 346,415,823,465.84
  5. Step 5: Solve for x
    x = 346,415,823,465.84/570,615.60
  6. Step 6: Final answer
    x = 607,091.40

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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.