Home / 463,861.07-640,117.45-272,886.76

Finding the Fourth Proportional to 463,861.07, 640,117.45 and 272,886.76

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Solution

The fourth proportional to 463,861.07, 640,117.45 and 272,886.76 is: 376,577.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    463,861.07 : 640,117.45 = 272,886.76 : x
  2. Step 2: Convert to fraction form
    463,861.07/640,117.45 = 272,886.76/x
  3. Step 3: Cross multiply
    463,861.07x = 640,117.45 × 272,886.76
  4. Step 4: Simplify right side
    463,861.07x = 174,679,576,949.96
  5. Step 5: Solve for x
    x = 174,679,576,949.96/463,861.07
  6. Step 6: Final answer
    x = 376,577.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.