Home / 781,111.22-1,077,882.63-436,887.51

Finding the Fourth Proportional to 781,111.22, 1,077,882.63 and 436,887.51

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Solution

The fourth proportional to 781,111.22, 1,077,882.63 and 436,887.51 is: 602,876.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    781,111.22 : 1,077,882.63 = 436,887.51 : x
  2. Step 2: Convert to fraction form
    781,111.22/1,077,882.63 = 436,887.51/x
  3. Step 3: Cross multiply
    781,111.22x = 1,077,882.63 × 436,887.51
  4. Step 4: Simplify right side
    781,111.22x = 470,913,452,612.56
  5. Step 5: Solve for x
    x = 470,913,452,612.56/781,111.22
  6. Step 6: Final answer
    x = 602,876.32

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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.