Home / 711,844.91-982,346.09-389,555.22

Finding the Fourth Proportional to 711,844.91, 982,346.09 and 389,555.22

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Solution

The fourth proportional to 711,844.91, 982,346.09 and 389,555.22 is: 537,586.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    711,844.91 : 982,346.09 = 389,555.22 : x
  2. Step 2: Convert to fraction form
    711,844.91/982,346.09 = 389,555.22/x
  3. Step 3: Cross multiply
    711,844.91x = 982,346.09 × 389,555.22
  4. Step 4: Simplify right side
    711,844.91x = 382,678,047,206.09
  5. Step 5: Solve for x
    x = 382,678,047,206.09/711,844.91
  6. Step 6: Final answer
    x = 537,586.27

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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.