Home / 505,938.58-698,195.01-279,582.10

Finding the Fourth Proportional to 505,938.58, 698,195.01 and 279,582.10

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Solution

The fourth proportional to 505,938.58, 698,195.01 and 279,582.10 is: 385,823.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,938.58 : 698,195.01 = 279,582.10 : x
  2. Step 2: Convert to fraction form
    505,938.58/698,195.01 = 279,582.10/x
  3. Step 3: Cross multiply
    505,938.58x = 698,195.01 × 279,582.10
  4. Step 4: Simplify right side
    505,938.58x = 195,202,827,105.32
  5. Step 5: Solve for x
    x = 195,202,827,105.32/505,938.58
  6. Step 6: Final answer
    x = 385,823.17

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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.