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Finding the Fourth Proportional to 478,543.55, 660,366.24 and 263,648.93

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Solution

The fourth proportional to 478,543.55, 660,366.24 and 263,648.93 is: 363,822.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,543.55 : 660,366.24 = 263,648.93 : x
  2. Step 2: Convert to fraction form
    478,543.55/660,366.24 = 263,648.93/x
  3. Step 3: Cross multiply
    478,543.55x = 660,366.24 × 263,648.93
  4. Step 4: Simplify right side
    478,543.55x = 174,104,852,584.12
  5. Step 5: Solve for x
    x = 174,104,852,584.12/478,543.55
  6. Step 6: Final answer
    x = 363,822.38

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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.