Home / 1,223,857.94-1,688,885.86-672,572.34

Finding the Fourth Proportional to 1,223,857.94, 1,688,885.86 and 672,572.34

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Solution

The fourth proportional to 1,223,857.94, 1,688,885.86 and 672,572.34 is: 928,128.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,223,857.94 : 1,688,885.86 = 672,572.34 : x
  2. Step 2: Convert to fraction form
    1,223,857.94/1,688,885.86 = 672,572.34/x
  3. Step 3: Cross multiply
    1,223,857.94x = 1,688,885.86 × 672,572.34
  4. Step 4: Simplify right side
    1,223,857.94x = 1,135,897,914,853.11
  5. Step 5: Solve for x
    x = 1,135,897,914,853.11/1,223,857.94
  6. Step 6: Final answer
    x = 928,128.89

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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.