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Finding the Fourth Proportional to 571,626.40, 856,856.40 and 334,847.20

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Solution

The fourth proportional to 571,626.40, 856,856.40 and 334,847.20 is: 501,929.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,626.40 : 856,856.40 = 334,847.20 : x
  2. Step 2: Convert to fraction form
    571,626.40/856,856.40 = 334,847.20/x
  3. Step 3: Cross multiply
    571,626.40x = 856,856.40 × 334,847.20
  4. Step 4: Simplify right side
    571,626.40x = 286,915,966,342.08
  5. Step 5: Solve for x
    x = 286,915,966,342.08/571,626.40
  6. Step 6: Final answer
    x = 501,929.17

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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.