Home / 389,514.31-584,526.75-136,788.19

Finding the Fourth Proportional to 389,514.31, 584,526.75 and 136,788.19

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Solution

The fourth proportional to 389,514.31, 584,526.75 and 136,788.19 is: 205,271.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,514.31 : 584,526.75 = 136,788.19 : x
  2. Step 2: Convert to fraction form
    389,514.31/584,526.75 = 136,788.19/x
  3. Step 3: Cross multiply
    389,514.31x = 584,526.75 × 136,788.19
  4. Step 4: Simplify right side
    389,514.31x = 79,956,356,139.08
  5. Step 5: Solve for x
    x = 79,956,356,139.08/389,514.31
  6. Step 6: Final answer
    x = 205,271.94

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.