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Finding the Fourth Proportional to 577,205.80, 865,808.70 and 364,629.40

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Solution

The fourth proportional to 577,205.80, 865,808.70 and 364,629.40 is: 546,944.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,205.80 : 865,808.70 = 364,629.40 : x
  2. Step 2: Convert to fraction form
    577,205.80/865,808.70 = 364,629.40/x
  3. Step 3: Cross multiply
    577,205.80x = 865,808.70 × 364,629.40
  4. Step 4: Simplify right side
    577,205.80x = 315,699,306,795.78
  5. Step 5: Solve for x
    x = 315,699,306,795.78/577,205.80
  6. Step 6: Final answer
    x = 546,944.10

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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.