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Finding the Fourth Proportional to 440,000.80, 658,834.80 and 346,688.80

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Solution

The fourth proportional to 440,000.80, 658,834.80 and 346,688.80 is: 519,114.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,000.80 : 658,834.80 = 346,688.80 : x
  2. Step 2: Convert to fraction form
    440,000.80/658,834.80 = 346,688.80/x
  3. Step 3: Cross multiply
    440,000.80x = 658,834.80 × 346,688.80
  4. Step 4: Simplify right side
    440,000.80x = 228,410,646,210.24
  5. Step 5: Solve for x
    x = 228,410,646,210.24/440,000.80
  6. Step 6: Final answer
    x = 519,114.16

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1.5x scale

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.