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Finding the Fourth Proportional to 528,829.60, 794,410.80 and 509,000.80

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Solution

The fourth proportional to 528,829.60, 794,410.80 and 509,000.80 is: 764,623.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,829.60 : 794,410.80 = 509,000.80 : x
  2. Step 2: Convert to fraction form
    528,829.60/794,410.80 = 509,000.80/x
  3. Step 3: Cross multiply
    528,829.60x = 794,410.80 × 509,000.80
  4. Step 4: Simplify right side
    528,829.60x = 404,355,732,728.64
  5. Step 5: Solve for x
    x = 404,355,732,728.64/528,829.60
  6. Step 6: Final answer
    x = 764,623.87

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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.