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Finding the Fourth Proportional to 556,395.28, 833,984.07 and 286,539.76

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Solution

The fourth proportional to 556,395.28, 833,984.07 and 286,539.76 is: 429,496.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,395.28 : 833,984.07 = 286,539.76 : x
  2. Step 2: Convert to fraction form
    556,395.28/833,984.07 = 286,539.76/x
  3. Step 3: Cross multiply
    556,395.28x = 833,984.07 × 286,539.76
  4. Step 4: Simplify right side
    556,395.28x = 238,969,595,229.58
  5. Step 5: Solve for x
    x = 238,969,595,229.58/556,395.28
  6. Step 6: Final answer
    x = 429,496.09

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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.