Home / 1,220,381.79-1,684,126.85-676,516.20

Finding the Fourth Proportional to 1,220,381.79, 1,684,126.85 and 676,516.20

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Solution

The fourth proportional to 1,220,381.79, 1,684,126.85 and 676,516.20 is: 933,592.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,220,381.79 : 1,684,126.85 = 676,516.20 : x
  2. Step 2: Convert to fraction form
    1,220,381.79/1,684,126.85 = 676,516.20/x
  3. Step 3: Cross multiply
    1,220,381.79x = 1,684,126.85 × 676,516.20
  4. Step 4: Simplify right side
    1,220,381.79x = 1,139,339,093,497.39
  5. Step 5: Solve for x
    x = 1,139,339,093,497.39/1,220,381.79
  6. Step 6: Final answer
    x = 933,592.34

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Double scale
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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.