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Finding the Fourth Proportional to 683,762.60, 1,025,643.90 and 494,805.80

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Solution

The fourth proportional to 683,762.60, 1,025,643.90 and 494,805.80 is: 742,208.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    683,762.60 : 1,025,643.90 = 494,805.80 : x
  2. Step 2: Convert to fraction form
    683,762.60/1,025,643.90 = 494,805.80/x
  3. Step 3: Cross multiply
    683,762.60x = 1,025,643.90 × 494,805.80
  4. Step 4: Simplify right side
    683,762.60x = 507,494,550,454.62
  5. Step 5: Solve for x
    x = 507,494,550,454.62/683,762.60
  6. Step 6: Final answer
    x = 742,208.70

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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.