Home / 1,919,521.90-2,880,276.45-783,117.10

Finding the Fourth Proportional to 1,919,521.90, 2,880,276.45 and 783,117.10

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Solution

The fourth proportional to 1,919,521.90, 2,880,276.45 and 783,117.10 is: 1,175,081.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,919,521.90 : 2,880,276.45 = 783,117.10 : x
  2. Step 2: Convert to fraction form
    1,919,521.90/2,880,276.45 = 783,117.10/x
  3. Step 3: Cross multiply
    1,919,521.90x = 2,880,276.45 × 783,117.10
  4. Step 4: Simplify right side
    1,919,521.90x = 2,255,593,740,722.30
  5. Step 5: Solve for x
    x = 2,255,593,740,722.30/1,919,521.90
  6. Step 6: Final answer
    x = 1,175,081.01

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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.