Home / 2,156,823.80-3,235,389.30-660,913.40

Finding the Fourth Proportional to 2,156,823.80, 3,235,389.30 and 660,913.40

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Solution

The fourth proportional to 2,156,823.80, 3,235,389.30 and 660,913.40 is: 991,417.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,156,823.80 : 3,235,389.30 = 660,913.40 : x
  2. Step 2: Convert to fraction form
    2,156,823.80/3,235,389.30 = 660,913.40/x
  3. Step 3: Cross multiply
    2,156,823.80x = 3,235,389.30 × 660,913.40
  4. Step 4: Simplify right side
    2,156,823.80x = 2,138,312,142,586.62
  5. Step 5: Solve for x
    x = 2,138,312,142,586.62/2,156,823.80
  6. Step 6: Final answer
    x = 991,417.17

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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.