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Finding the Fourth Proportional to 504,339.52, 695,718 and 322,856.20

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Solution

The fourth proportional to 504,339.52, 695,718 and 322,856.20 is: 445,368.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    504,339.52 : 695,718 = 322,856.20 : x
  2. Step 2: Convert to fraction form
    504,339.52/695,718 = 322,856.20/x
  3. Step 3: Cross multiply
    504,339.52x = 695,718 × 322,856.20
  4. Step 4: Simplify right side
    504,339.52x = 224,616,869,751.60
  5. Step 5: Solve for x
    x = 224,616,869,751.60/504,339.52
  6. Step 6: Final answer
    x = 445,368.37

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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.