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Finding the Fourth Proportional to 760,794.08, 1,049,883 and 421,255.04

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Solution

The fourth proportional to 760,794.08, 1,049,883 and 421,255.04 is: 581,324.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    760,794.08 : 1,049,883 = 421,255.04 : x
  2. Step 2: Convert to fraction form
    760,794.08/1,049,883 = 421,255.04/x
  3. Step 3: Cross multiply
    760,794.08x = 1,049,883 × 421,255.04
  4. Step 4: Simplify right side
    760,794.08x = 442,268,505,160.32
  5. Step 5: Solve for x
    x = 442,268,505,160.32/760,794.08
  6. Step 6: Final answer
    x = 581,324.85

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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.