Home / 1,200,970.68-1,657,144.62-664,323

Finding the Fourth Proportional to 1,200,970.68, 1,657,144.62 and 664,323

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Solution

The fourth proportional to 1,200,970.68, 1,657,144.62 and 664,323 is: 916,657.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,200,970.68 : 1,657,144.62 = 664,323 : x
  2. Step 2: Convert to fraction form
    1,200,970.68/1,657,144.62 = 664,323/x
  3. Step 3: Cross multiply
    1,200,970.68x = 1,657,144.62 × 664,323
  4. Step 4: Simplify right side
    1,200,970.68x = 1,100,879,285,392.26
  5. Step 5: Solve for x
    x = 1,100,879,285,392.26/1,200,970.68
  6. Step 6: Final answer
    x = 916,657.92

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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.