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Finding the Fourth Proportional to 880,022.40, 1,214,431.40 and 477,614.40

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Solution

The fourth proportional to 880,022.40, 1,214,431.40 and 477,614.40 is: 659,108.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    880,022.40 : 1,214,431.40 = 477,614.40 : x
  2. Step 2: Convert to fraction form
    880,022.40/1,214,431.40 = 477,614.40/x
  3. Step 3: Cross multiply
    880,022.40x = 1,214,431.40 × 477,614.40
  4. Step 4: Simplify right side
    880,022.40x = 580,029,924,452.16
  5. Step 5: Solve for x
    x = 580,029,924,452.16/880,022.40
  6. Step 6: Final answer
    x = 659,108.14

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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.