Home / 403,099.72-556,091.49-259,905.76

Finding the Fourth Proportional to 403,099.72, 556,091.49 and 259,905.76

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Solution

The fourth proportional to 403,099.72, 556,091.49 and 259,905.76 is: 358,549.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,099.72 : 556,091.49 = 259,905.76 : x
  2. Step 2: Convert to fraction form
    403,099.72/556,091.49 = 259,905.76/x
  3. Step 3: Cross multiply
    403,099.72x = 556,091.49 × 259,905.76
  4. Step 4: Simplify right side
    403,099.72x = 144,531,381,337.98
  5. Step 5: Solve for x
    x = 144,531,381,337.98/403,099.72
  6. Step 6: Final answer
    x = 358,549.94

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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.