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Finding the Fourth Proportional to 669,079.79, 923,327.81 and 363,156.16

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Solution

The fourth proportional to 669,079.79, 923,327.81 and 363,156.16 is: 501,154.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    669,079.79 : 923,327.81 = 363,156.16 : x
  2. Step 2: Convert to fraction form
    669,079.79/923,327.81 = 363,156.16/x
  3. Step 3: Cross multiply
    669,079.79x = 923,327.81 × 363,156.16
  4. Step 4: Simplify right side
    669,079.79x = 335,312,181,900.81
  5. Step 5: Solve for x
    x = 335,312,181,900.81/669,079.79
  6. Step 6: Final answer
    x = 501,154.25

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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.