Home / 1,212,134.10-1,672,714.14-668,257.20

Finding the Fourth Proportional to 1,212,134.10, 1,672,714.14 and 668,257.20

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Solution

The fourth proportional to 1,212,134.10, 1,672,714.14 and 668,257.20 is: 922,177.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,212,134.10 : 1,672,714.14 = 668,257.20 : x
  2. Step 2: Convert to fraction form
    1,212,134.10/1,672,714.14 = 668,257.20/x
  3. Step 3: Cross multiply
    1,212,134.10x = 1,672,714.14 × 668,257.20
  4. Step 4: Simplify right side
    1,212,134.10x = 1,117,803,267,596.81
  5. Step 5: Solve for x
    x = 1,117,803,267,596.81/1,212,134.10
  6. Step 6: Final answer
    x = 922,177.89

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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.