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Finding the Fourth Proportional to 577,069.80, 865,604.70 and 549,513.60

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Solution

The fourth proportional to 577,069.80, 865,604.70 and 549,513.60 is: 824,270.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,069.80 : 865,604.70 = 549,513.60 : x
  2. Step 2: Convert to fraction form
    577,069.80/865,604.70 = 549,513.60/x
  3. Step 3: Cross multiply
    577,069.80x = 865,604.70 × 549,513.60
  4. Step 4: Simplify right side
    577,069.80x = 475,661,554,873.92
  5. Step 5: Solve for x
    x = 475,661,554,873.92/577,069.80
  6. Step 6: Final answer
    x = 824,270.40

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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.