Home / 443,916.95-666,349.28-191,322.09

Finding the Fourth Proportional to 443,916.95, 666,349.28 and 191,322.09

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Solution

The fourth proportional to 443,916.95, 666,349.28 and 191,322.09 is: 287,187.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,916.95 : 666,349.28 = 191,322.09 : x
  2. Step 2: Convert to fraction form
    443,916.95/666,349.28 = 191,322.09/x
  3. Step 3: Cross multiply
    443,916.95x = 666,349.28 × 191,322.09
  4. Step 4: Simplify right side
    443,916.95x = 127,487,335,962.99
  5. Step 5: Solve for x
    x = 127,487,335,962.99/443,916.95
  6. Step 6: Final answer
    x = 287,187.36

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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.