Home / 505,934.05-698,228.70-288,151.93

Finding the Fourth Proportional to 505,934.05, 698,228.70 and 288,151.93

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Solution

The fourth proportional to 505,934.05, 698,228.70 and 288,151.93 is: 397,672.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,934.05 : 698,228.70 = 288,151.93 : x
  2. Step 2: Convert to fraction form
    505,934.05/698,228.70 = 288,151.93/x
  3. Step 3: Cross multiply
    505,934.05x = 698,228.70 × 288,151.93
  4. Step 4: Simplify right side
    505,934.05x = 201,195,947,486.39
  5. Step 5: Solve for x
    x = 201,195,947,486.39/505,934.05
  6. Step 6: Final answer
    x = 397,672.28

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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.