Home / 785,127.87-1,083,390.39-440,894.07

Finding the Fourth Proportional to 785,127.87, 1,083,390.39 and 440,894.07

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Solution

The fourth proportional to 785,127.87, 1,083,390.39 and 440,894.07 is: 608,385.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    785,127.87 : 1,083,390.39 = 440,894.07 : x
  2. Step 2: Convert to fraction form
    785,127.87/1,083,390.39 = 440,894.07/x
  3. Step 3: Cross multiply
    785,127.87x = 1,083,390.39 × 440,894.07
  4. Step 4: Simplify right side
    785,127.87x = 477,660,398,445.99
  5. Step 5: Solve for x
    x = 477,660,398,445.99/785,127.87
  6. Step 6: Final answer
    x = 608,385.48

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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.