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Finding the Fourth Proportional to 518,917.84, 716,078.82 and 292,548.76

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Solution

The fourth proportional to 518,917.84, 716,078.82 and 292,548.76 is: 403,701.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,917.84 : 716,078.82 = 292,548.76 : x
  2. Step 2: Convert to fraction form
    518,917.84/716,078.82 = 292,548.76/x
  3. Step 3: Cross multiply
    518,917.84x = 716,078.82 × 292,548.76
  4. Step 4: Simplify right side
    518,917.84x = 209,487,970,853.26
  5. Step 5: Solve for x
    x = 209,487,970,853.26/518,917.84
  6. Step 6: Final answer
    x = 403,701.62

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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.