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Finding the Fourth Proportional to 470,977.20, 706,465.80 and 293,684.40

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Solution

The fourth proportional to 470,977.20, 706,465.80 and 293,684.40 is: 440,526.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    470,977.20 : 706,465.80 = 293,684.40 : x
  2. Step 2: Convert to fraction form
    470,977.20/706,465.80 = 293,684.40/x
  3. Step 3: Cross multiply
    470,977.20x = 706,465.80 × 293,684.40
  4. Step 4: Simplify right side
    470,977.20x = 207,477,984,593.52
  5. Step 5: Solve for x
    x = 207,477,984,593.52/470,977.20
  6. Step 6: Final answer
    x = 440,526.60

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.