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Finding the Fourth Proportional to 395,205.39, 545,697.87 and 364,979.69

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Solution

The fourth proportional to 395,205.39, 545,697.87 and 364,979.69 is: 503,962.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,205.39 : 545,697.87 = 364,979.69 : x
  2. Step 2: Convert to fraction form
    395,205.39/545,697.87 = 364,979.69/x
  3. Step 3: Cross multiply
    395,205.39x = 545,697.87 × 364,979.69
  4. Step 4: Simplify right side
    395,205.39x = 199,168,636,697.77
  5. Step 5: Solve for x
    x = 199,168,636,697.77/395,205.39
  6. Step 6: Final answer
    x = 503,962.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.