Home / 385,079.90-577,231.05-174,868.70

Finding the Fourth Proportional to 385,079.90, 577,231.05 and 174,868.70

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Solution

The fourth proportional to 385,079.90, 577,231.05 and 174,868.70 is: 262,126.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,079.90 : 577,231.05 = 174,868.70 : x
  2. Step 2: Convert to fraction form
    385,079.90/577,231.05 = 174,868.70/x
  3. Step 3: Cross multiply
    385,079.90x = 577,231.05 × 174,868.70
  4. Step 4: Simplify right side
    385,079.90x = 100,939,643,313.14
  5. Step 5: Solve for x
    x = 100,939,643,313.14/385,079.90
  6. Step 6: Final answer
    x = 262,126.49

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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.