Home / 1,261,249-1,740,560.34-688,325.80

Finding the Fourth Proportional to 1,261,249, 1,740,560.34 and 688,325.80

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Solution

The fourth proportional to 1,261,249, 1,740,560.34 and 688,325.80 is: 949,909.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,261,249 : 1,740,560.34 = 688,325.80 : x
  2. Step 2: Convert to fraction form
    1,261,249/1,740,560.34 = 688,325.80/x
  3. Step 3: Cross multiply
    1,261,249x = 1,740,560.34 × 688,325.80
  4. Step 4: Simplify right side
    1,261,249x = 1,198,072,588,478.77
  5. Step 5: Solve for x
    x = 1,198,072,588,478.77/1,261,249
  6. Step 6: Final answer
    x = 949,909.64

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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.