Home / 385,924.96-578,869.62-105,441.40

Finding the Fourth Proportional to 385,924.96, 578,869.62 and 105,441.40

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Solution

The fourth proportional to 385,924.96, 578,869.62 and 105,441.40 is: 158,157.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,924.96 : 578,869.62 = 105,441.40 : x
  2. Step 2: Convert to fraction form
    385,924.96/578,869.62 = 105,441.40/x
  3. Step 3: Cross multiply
    385,924.96x = 578,869.62 × 105,441.40
  4. Step 4: Simplify right side
    385,924.96x = 61,036,823,150.27
  5. Step 5: Solve for x
    x = 61,036,823,150.27/385,924.96
  6. Step 6: Final answer
    x = 158,157.23

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.