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Finding the Fourth Proportional to 577,078.70, 865,618.05 and 568,784.30

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Solution

The fourth proportional to 577,078.70, 865,618.05 and 568,784.30 is: 853,176.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,078.70 : 865,618.05 = 568,784.30 : x
  2. Step 2: Convert to fraction form
    577,078.70/865,618.05 = 568,784.30/x
  3. Step 3: Cross multiply
    577,078.70x = 865,618.05 × 568,784.30
  4. Step 4: Simplify right side
    577,078.70x = 492,349,956,636.62
  5. Step 5: Solve for x
    x = 492,349,956,636.62/577,078.70
  6. Step 6: Final answer
    x = 853,176.45

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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.