Home / 450,107.51-621,088.22-248,916.47

Finding the Fourth Proportional to 450,107.51, 621,088.22 and 248,916.47

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Solution

The fourth proportional to 450,107.51, 621,088.22 and 248,916.47 is: 343,471.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    450,107.51 : 621,088.22 = 248,916.47 : x
  2. Step 2: Convert to fraction form
    450,107.51/621,088.22 = 248,916.47/x
  3. Step 3: Cross multiply
    450,107.51x = 621,088.22 × 248,916.47
  4. Step 4: Simplify right side
    450,107.51x = 154,599,084,797.83
  5. Step 5: Solve for x
    x = 154,599,084,797.83/450,107.51
  6. Step 6: Final answer
    x = 343,471.47

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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.