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Finding the Fourth Proportional to 671,783.58, 927,000.32 and 399,807.59

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Solution

The fourth proportional to 671,783.58, 927,000.32 and 399,807.59 is: 551,698.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    671,783.58 : 927,000.32 = 399,807.59 : x
  2. Step 2: Convert to fraction form
    671,783.58/927,000.32 = 399,807.59/x
  3. Step 3: Cross multiply
    671,783.58x = 927,000.32 × 399,807.59
  4. Step 4: Simplify right side
    671,783.58x = 370,621,757,234.39
  5. Step 5: Solve for x
    x = 370,621,757,234.39/671,783.58
  6. Step 6: Final answer
    x = 551,698.15

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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.