Home / 1,411,042.70-1,947,275.16-766,499.78

Finding the Fourth Proportional to 1,411,042.70, 1,947,275.16 and 766,499.78

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Solution

The fourth proportional to 1,411,042.70, 1,947,275.16 and 766,499.78 is: 1,057,789.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,411,042.70 : 1,947,275.16 = 766,499.78 : x
  2. Step 2: Convert to fraction form
    1,411,042.70/1,947,275.16 = 766,499.78/x
  3. Step 3: Cross multiply
    1,411,042.70x = 1,947,275.16 × 766,499.78
  4. Step 4: Simplify right side
    1,411,042.70x = 1,492,585,981,739.47
  5. Step 5: Solve for x
    x = 1,492,585,981,739.47/1,411,042.70
  6. Step 6: Final answer
    x = 1,057,789.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.