Home / 669,686.48-923,533.04-439,839.28

Finding the Fourth Proportional to 669,686.48, 923,533.04 and 439,839.28

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Solution

The fourth proportional to 669,686.48, 923,533.04 and 439,839.28 is: 606,561.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    669,686.48 : 923,533.04 = 439,839.28 : x
  2. Step 2: Convert to fraction form
    669,686.48/923,533.04 = 439,839.28/x
  3. Step 3: Cross multiply
    669,686.48x = 923,533.04 × 439,839.28
  4. Step 4: Simplify right side
    669,686.48x = 406,206,107,369.81
  5. Step 5: Solve for x
    x = 406,206,107,369.81/669,686.48
  6. Step 6: Final answer
    x = 606,561.61

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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.