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Finding the Fourth Proportional to 513,168.83, 708,160.75 and 286,835.39

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Solution

The fourth proportional to 513,168.83, 708,160.75 and 286,835.39 is: 395,826.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    513,168.83 : 708,160.75 = 286,835.39 : x
  2. Step 2: Convert to fraction form
    513,168.83/708,160.75 = 286,835.39/x
  3. Step 3: Cross multiply
    513,168.83x = 708,160.75 × 286,835.39
  4. Step 4: Simplify right side
    513,168.83x = 203,125,564,908.94
  5. Step 5: Solve for x
    x = 203,125,564,908.94/513,168.83
  6. Step 6: Final answer
    x = 395,826.00

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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.