Home / 661,666.05-991,916.69-262,587.15

Finding the Fourth Proportional to 661,666.05, 991,916.69 and 262,587.15

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Solution

The fourth proportional to 661,666.05, 991,916.69 and 262,587.15 is: 393,649.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    661,666.05 : 991,916.69 = 262,587.15 : x
  2. Step 2: Convert to fraction form
    661,666.05/991,916.69 = 262,587.15/x
  3. Step 3: Cross multiply
    661,666.05x = 991,916.69 × 262,587.15
  4. Step 4: Simplify right side
    661,666.05x = 260,464,575,351.60
  5. Step 5: Solve for x
    x = 260,464,575,351.60/661,666.05
  6. Step 6: Final answer
    x = 393,649.60

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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.