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Finding the Fourth Proportional to 649,359.78, 896,113.90 and 362,879.79

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Solution

The fourth proportional to 649,359.78, 896,113.90 and 362,879.79 is: 500,772.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    649,359.78 : 896,113.90 = 362,879.79 : x
  2. Step 2: Convert to fraction form
    649,359.78/896,113.90 = 362,879.79/x
  3. Step 3: Cross multiply
    649,359.78x = 896,113.90 × 362,879.79
  4. Step 4: Simplify right side
    649,359.78x = 325,181,623,848.08
  5. Step 5: Solve for x
    x = 325,181,623,848.08/649,359.78
  6. Step 6: Final answer
    x = 500,772.66

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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.