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Finding the Fourth Proportional to 672,188.94, 927,577.47 and 400,276.80

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Solution

The fourth proportional to 672,188.94, 927,577.47 and 400,276.80 is: 552,356.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,188.94 : 927,577.47 = 400,276.80 : x
  2. Step 2: Convert to fraction form
    672,188.94/927,577.47 = 400,276.80/x
  3. Step 3: Cross multiply
    672,188.94x = 927,577.47 × 400,276.80
  4. Step 4: Simplify right side
    672,188.94x = 371,287,741,443.70
  5. Step 5: Solve for x
    x = 371,287,741,443.70/672,188.94
  6. Step 6: Final answer
    x = 552,356.22

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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.