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Finding the Fourth Proportional to 857,955.46, 1,183,978.08 and 470,773.43

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Solution

The fourth proportional to 857,955.46, 1,183,978.08 and 470,773.43 is: 649,667.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    857,955.46 : 1,183,978.08 = 470,773.43 : x
  2. Step 2: Convert to fraction form
    857,955.46/1,183,978.08 = 470,773.43/x
  3. Step 3: Cross multiply
    857,955.46x = 1,183,978.08 × 470,773.43
  4. Step 4: Simplify right side
    857,955.46x = 557,385,421,766.41
  5. Step 5: Solve for x
    x = 557,385,421,766.41/857,955.46
  6. Step 6: Final answer
    x = 649,667.08

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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.