Home / 1,915,911.02-2,643,900.65-1,056,471.06

Finding the Fourth Proportional to 1,915,911.02, 2,643,900.65 and 1,056,471.06

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Solution

The fourth proportional to 1,915,911.02, 2,643,900.65 and 1,056,471.06 is: 1,457,898.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,915,911.02 : 2,643,900.65 = 1,056,471.06 : x
  2. Step 2: Convert to fraction form
    1,915,911.02/2,643,900.65 = 1,056,471.06/x
  3. Step 3: Cross multiply
    1,915,911.02x = 2,643,900.65 × 1,056,471.06
  4. Step 4: Simplify right side
    1,915,911.02x = 2,793,204,522,240.19
  5. Step 5: Solve for x
    x = 2,793,204,522,240.19/1,915,911.02
  6. Step 6: Final answer
    x = 1,457,898.88

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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.