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Finding the Fourth Proportional to 734,807.40, 1,102,211.10 and 545,850.60

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Solution

The fourth proportional to 734,807.40, 1,102,211.10 and 545,850.60 is: 818,775.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    734,807.40 : 1,102,211.10 = 545,850.60 : x
  2. Step 2: Convert to fraction form
    734,807.40/1,102,211.10 = 545,850.60/x
  3. Step 3: Cross multiply
    734,807.40x = 1,102,211.10 × 545,850.60
  4. Step 4: Simplify right side
    734,807.40x = 601,642,590,261.66
  5. Step 5: Solve for x
    x = 601,642,590,261.66/734,807.40
  6. Step 6: Final answer
    x = 818,775.90

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Double scale
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Similar ratio
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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.