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Finding the Fourth Proportional to 514,302.77, 771,392.71 and 135,253.05

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Solution

The fourth proportional to 514,302.77, 771,392.71 and 135,253.05 is: 202,863.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    514,302.77 : 771,392.71 = 135,253.05 : x
  2. Step 2: Convert to fraction form
    514,302.77/771,392.71 = 135,253.05/x
  3. Step 3: Cross multiply
    514,302.77x = 771,392.71 × 135,253.05
  4. Step 4: Simplify right side
    514,302.77x = 104,333,216,775.27
  5. Step 5: Solve for x
    x = 104,333,216,775.27/514,302.77
  6. Step 6: Final answer
    x = 202,863.42

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1.5x scale

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.