Home / 923,325.80-1,384,794.30-390,864.20

Finding the Fourth Proportional to 923,325.80, 1,384,794.30 and 390,864.20

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Solution

The fourth proportional to 923,325.80, 1,384,794.30 and 390,864.20 is: 586,214.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    923,325.80 : 1,384,794.30 = 390,864.20 : x
  2. Step 2: Convert to fraction form
    923,325.80/1,384,794.30 = 390,864.20/x
  3. Step 3: Cross multiply
    923,325.80x = 1,384,794.30 × 390,864.20
  4. Step 4: Simplify right side
    923,325.80x = 541,266,516,234.06
  5. Step 5: Solve for x
    x = 541,266,516,234.06/923,325.80
  6. Step 6: Final answer
    x = 586,214.01

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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.