Home / 1,390,520-1,918,917.60-754,616

Finding the Fourth Proportional to 1,390,520, 1,918,917.60 and 754,616

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Solution

The fourth proportional to 1,390,520, 1,918,917.60 and 754,616 is: 1,041,370.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,390,520 : 1,918,917.60 = 754,616 : x
  2. Step 2: Convert to fraction form
    1,390,520/1,918,917.60 = 754,616/x
  3. Step 3: Cross multiply
    1,390,520x = 1,918,917.60 × 754,616
  4. Step 4: Simplify right side
    1,390,520x = 1,448,045,923,641.60
  5. Step 5: Solve for x
    x = 1,448,045,923,641.60/1,390,520
  6. Step 6: Final answer
    x = 1,041,370.08

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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.