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Finding the Fourth Proportional to 578,119.60, 807,792.80 and 578,119.60

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Solution

The fourth proportional to 578,119.60, 807,792.80 and 578,119.60 is: 807,792.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,119.60 : 807,792.80 = 578,119.60 : x
  2. Step 2: Convert to fraction form
    578,119.60/807,792.80 = 578,119.60/x
  3. Step 3: Cross multiply
    578,119.60x = 807,792.80 × 578,119.60
  4. Step 4: Simplify right side
    578,119.60x = 467,000,850,418.88
  5. Step 5: Solve for x
    x = 467,000,850,418.88/578,119.60
  6. Step 6: Final answer
    x = 807,792.80

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.