Home / 781,113.97-1,077,886.42-436,890.26

Finding the Fourth Proportional to 781,113.97, 1,077,886.42 and 436,890.26

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Solution

The fourth proportional to 781,113.97, 1,077,886.42 and 436,890.26 is: 602,880.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    781,113.97 : 1,077,886.42 = 436,890.26 : x
  2. Step 2: Convert to fraction form
    781,113.97/1,077,886.42 = 436,890.26/x
  3. Step 3: Cross multiply
    781,113.97x = 1,077,886.42 × 436,890.26
  4. Step 4: Simplify right side
    781,113.97x = 470,918,072,894.84
  5. Step 5: Solve for x
    x = 470,918,072,894.84/781,113.97
  6. Step 6: Final answer
    x = 602,880.11

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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.