Home / 626,396.15-864,429.03-339,916.29

Finding the Fourth Proportional to 626,396.15, 864,429.03 and 339,916.29

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Solution

The fourth proportional to 626,396.15, 864,429.03 and 339,916.29 is: 469,085.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,396.15 : 864,429.03 = 339,916.29 : x
  2. Step 2: Convert to fraction form
    626,396.15/864,429.03 = 339,916.29/x
  3. Step 3: Cross multiply
    626,396.15x = 864,429.03 × 339,916.29
  4. Step 4: Simplify right side
    626,396.15x = 293,833,508,845.90
  5. Step 5: Solve for x
    x = 293,833,508,845.90/626,396.15
  6. Step 6: Final answer
    x = 469,085.76

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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.