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Finding the Fourth Proportional to 519,275.34, 716,600.52 and 286,702.74

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Solution

The fourth proportional to 519,275.34, 716,600.52 and 286,702.74 is: 395,650.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,275.34 : 716,600.52 = 286,702.74 : x
  2. Step 2: Convert to fraction form
    519,275.34/716,600.52 = 286,702.74/x
  3. Step 3: Cross multiply
    519,275.34x = 716,600.52 × 286,702.74
  4. Step 4: Simplify right side
    519,275.34x = 205,451,332,569.43
  5. Step 5: Solve for x
    x = 205,451,332,569.43/519,275.34
  6. Step 6: Final answer
    x = 395,650.09

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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.