Home / 2,805,340.20-4,208,010.30-912,143.40

Finding the Fourth Proportional to 2,805,340.20, 4,208,010.30 and 912,143.40

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Solution

The fourth proportional to 2,805,340.20, 4,208,010.30 and 912,143.40 is: 1,368,215.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,805,340.20 : 4,208,010.30 = 912,143.40 : x
  2. Step 2: Convert to fraction form
    2,805,340.20/4,208,010.30 = 912,143.40/x
  3. Step 3: Cross multiply
    2,805,340.20x = 4,208,010.30 × 912,143.40
  4. Step 4: Simplify right side
    2,805,340.20x = 3,838,308,822,277.02
  5. Step 5: Solve for x
    x = 3,838,308,822,277.02/2,805,340.20
  6. Step 6: Final answer
    x = 1,368,215.10

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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.