Home / 2,124,807.40-3,187,211.10-1,914,855.40

Finding the Fourth Proportional to 2,124,807.40, 3,187,211.10 and 1,914,855.40

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Solution

The fourth proportional to 2,124,807.40, 3,187,211.10 and 1,914,855.40 is: 2,872,283.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,124,807.40 : 3,187,211.10 = 1,914,855.40 : x
  2. Step 2: Convert to fraction form
    2,124,807.40/3,187,211.10 = 1,914,855.40/x
  3. Step 3: Cross multiply
    2,124,807.40x = 3,187,211.10 × 1,914,855.40
  4. Step 4: Simplify right side
    2,124,807.40x = 6,103,048,385,774.94
  5. Step 5: Solve for x
    x = 6,103,048,385,774.94/2,124,807.40
  6. Step 6: Final answer
    x = 2,872,283.10

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Double scale
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Similar ratio
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1.5x scale

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.