Home / 839,816.05-1,158,963.54-472,300.21

Finding the Fourth Proportional to 839,816.05, 1,158,963.54 and 472,300.21

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Solution

The fourth proportional to 839,816.05, 1,158,963.54 and 472,300.21 is: 651,784.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,816.05 : 1,158,963.54 = 472,300.21 : x
  2. Step 2: Convert to fraction form
    839,816.05/1,158,963.54 = 472,300.21/x
  3. Step 3: Cross multiply
    839,816.05x = 1,158,963.54 × 472,300.21
  4. Step 4: Simplify right side
    839,816.05x = 547,378,723,324.34
  5. Step 5: Solve for x
    x = 547,378,723,324.34/839,816.05
  6. Step 6: Final answer
    x = 651,784.07

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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.