Home / 1,865,428.80-2,794,206.60-1,665,974.40

Finding the Fourth Proportional to 1,865,428.80, 2,794,206.60 and 1,665,974.40

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Solution

The fourth proportional to 1,865,428.80, 2,794,206.60 and 1,665,974.40 is: 2,495,445.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,865,428.80 : 2,794,206.60 = 1,665,974.40 : x
  2. Step 2: Convert to fraction form
    1,865,428.80/2,794,206.60 = 1,665,974.40/x
  3. Step 3: Cross multiply
    1,865,428.80x = 2,794,206.60 × 1,665,974.40
  4. Step 4: Simplify right side
    1,865,428.80x = 4,655,076,663,911.04
  5. Step 5: Solve for x
    x = 4,655,076,663,911.04/1,865,428.80
  6. Step 6: Final answer
    x = 2,495,445.91

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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.