Home / 385,135.71-577,840.33-171,884.23

Finding the Fourth Proportional to 385,135.71, 577,840.33 and 171,884.23

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Solution

The fourth proportional to 385,135.71, 577,840.33 and 171,884.23 is: 257,887.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,135.71 : 577,840.33 = 171,884.23 : x
  2. Step 2: Convert to fraction form
    385,135.71/577,840.33 = 171,884.23/x
  3. Step 3: Cross multiply
    385,135.71x = 577,840.33 × 171,884.23
  4. Step 4: Simplify right side
    385,135.71x = 99,321,638,955.25
  5. Step 5: Solve for x
    x = 99,321,638,955.25/385,135.71
  6. Step 6: Final answer
    x = 257,887.38

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1.5x scale

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.