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Finding the Fourth Proportional to 692,877.77, 949,226.75 and 666,972.69

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Solution

The fourth proportional to 692,877.77, 949,226.75 and 666,972.69 is: 913,737.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    692,877.77 : 949,226.75 = 666,972.69 : x
  2. Step 2: Convert to fraction form
    692,877.77/949,226.75 = 666,972.69/x
  3. Step 3: Cross multiply
    692,877.77x = 949,226.75 × 666,972.69
  4. Step 4: Simplify right side
    692,877.77x = 633,108,321,148.39
  5. Step 5: Solve for x
    x = 633,108,321,148.39/692,877.77
  6. Step 6: Final answer
    x = 913,737.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.