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Finding the Fourth Proportional to 617,407.92, 926,111.86 and 406,996.64

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Solution

The fourth proportional to 617,407.92, 926,111.86 and 406,996.64 is: 610,494.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,407.92 : 926,111.86 = 406,996.64 : x
  2. Step 2: Convert to fraction form
    617,407.92/926,111.86 = 406,996.64/x
  3. Step 3: Cross multiply
    617,407.92x = 926,111.86 × 406,996.64
  4. Step 4: Simplify right side
    617,407.92x = 376,924,415,284.15
  5. Step 5: Solve for x
    x = 376,924,415,284.15/617,407.92
  6. Step 6: Final answer
    x = 610,494.95

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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.