Home / 1,434,545.72-1,979,678.70-861,595.64

Finding the Fourth Proportional to 1,434,545.72, 1,979,678.70 and 861,595.64

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Solution

The fourth proportional to 1,434,545.72, 1,979,678.70 and 861,595.64 is: 1,189,005.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,434,545.72 : 1,979,678.70 = 861,595.64 : x
  2. Step 2: Convert to fraction form
    1,434,545.72/1,979,678.70 = 861,595.64/x
  3. Step 3: Cross multiply
    1,434,545.72x = 1,979,678.70 × 861,595.64
  4. Step 4: Simplify right side
    1,434,545.72x = 1,705,682,536,520.87
  5. Step 5: Solve for x
    x = 1,705,682,536,520.87/1,434,545.72
  6. Step 6: Final answer
    x = 1,189,005.35

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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.