Home / 923,107.20-1,384,803.36-390,631.20

Finding the Fourth Proportional to 923,107.20, 1,384,803.36 and 390,631.20

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Solution

The fourth proportional to 923,107.20, 1,384,803.36 and 390,631.20 is: 586,007.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    923,107.20 : 1,384,803.36 = 390,631.20 : x
  2. Step 2: Convert to fraction form
    923,107.20/1,384,803.36 = 390,631.20/x
  3. Step 3: Cross multiply
    923,107.20x = 1,384,803.36 × 390,631.20
  4. Step 4: Simplify right side
    923,107.20x = 540,947,398,280.83
  5. Step 5: Solve for x
    x = 540,947,398,280.83/923,107.20
  6. Step 6: Final answer
    x = 586,007.13

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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.