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Finding the Fourth Proportional to 669,264.96, 923,587.20 and 367,478.40

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Solution

The fourth proportional to 669,264.96, 923,587.20 and 367,478.40 is: 507,121.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    669,264.96 : 923,587.20 = 367,478.40 : x
  2. Step 2: Convert to fraction form
    669,264.96/923,587.20 = 367,478.40/x
  3. Step 3: Cross multiply
    669,264.96x = 923,587.20 × 367,478.40
  4. Step 4: Simplify right side
    669,264.96x = 339,398,346,516.48
  5. Step 5: Solve for x
    x = 339,398,346,516.48/669,264.96
  6. Step 6: Final answer
    x = 507,121.05

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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.