Home / 1,429,998.80-1,973,414.54-785,434

Finding the Fourth Proportional to 1,429,998.80, 1,973,414.54 and 785,434

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Solution

The fourth proportional to 1,429,998.80, 1,973,414.54 and 785,434 is: 1,083,907.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,429,998.80 : 1,973,414.54 = 785,434 : x
  2. Step 2: Convert to fraction form
    1,429,998.80/1,973,414.54 = 785,434/x
  3. Step 3: Cross multiply
    1,429,998.80x = 1,973,414.54 × 785,434
  4. Step 4: Simplify right side
    1,429,998.80x = 1,549,986,875,810.36
  5. Step 5: Solve for x
    x = 1,549,986,875,810.36/1,429,998.80
  6. Step 6: Final answer
    x = 1,083,907.82

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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.