Home / 385,420.14-577,931.02-169,190.38

Finding the Fourth Proportional to 385,420.14, 577,931.02 and 169,190.38

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Solution

The fourth proportional to 385,420.14, 577,931.02 and 169,190.38 is: 253,698.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,420.14 : 577,931.02 = 169,190.38 : x
  2. Step 2: Convert to fraction form
    385,420.14/577,931.02 = 169,190.38/x
  3. Step 3: Cross multiply
    385,420.14x = 577,931.02 × 169,190.38
  4. Step 4: Simplify right side
    385,420.14x = 97,780,368,887.59
  5. Step 5: Solve for x
    x = 97,780,368,887.59/385,420.14
  6. Step 6: Final answer
    x = 253,698.13

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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.