Home / 442,945.57-611,052.29-289,916.39

Finding the Fourth Proportional to 442,945.57, 611,052.29 and 289,916.39

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Solution

The fourth proportional to 442,945.57, 611,052.29 and 289,916.39 is: 399,945.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,945.57 : 611,052.29 = 289,916.39 : x
  2. Step 2: Convert to fraction form
    442,945.57/611,052.29 = 289,916.39/x
  3. Step 3: Cross multiply
    442,945.57x = 611,052.29 × 289,916.39
  4. Step 4: Simplify right side
    442,945.57x = 177,154,074,018.03
  5. Step 5: Solve for x
    x = 177,154,074,018.03/442,945.57
  6. Step 6: Final answer
    x = 399,945.47

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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.