Home / 2,153,790.40-3,230,656.80-657,889.60

Finding the Fourth Proportional to 2,153,790.40, 3,230,656.80 and 657,889.60

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Solution

The fourth proportional to 2,153,790.40, 3,230,656.80 and 657,889.60 is: 986,825.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,153,790.40 : 3,230,656.80 = 657,889.60 : x
  2. Step 2: Convert to fraction form
    2,153,790.40/3,230,656.80 = 657,889.60/x
  3. Step 3: Cross multiply
    2,153,790.40x = 3,230,656.80 × 657,889.60
  4. Step 4: Simplify right side
    2,153,790.40x = 2,125,415,509,889.28
  5. Step 5: Solve for x
    x = 2,125,415,509,889.28/2,153,790.40
  6. Step 6: Final answer
    x = 986,825.60

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.