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Finding the Fourth Proportional to 478,777.60, 718,271.46 and 141,844.60

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Solution

The fourth proportional to 478,777.60, 718,271.46 and 141,844.60 is: 212,798.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,777.60 : 718,271.46 = 141,844.60 : x
  2. Step 2: Convert to fraction form
    478,777.60/718,271.46 = 141,844.60/x
  3. Step 3: Cross multiply
    478,777.60x = 718,271.46 × 141,844.60
  4. Step 4: Simplify right side
    478,777.60x = 101,882,927,935.12
  5. Step 5: Solve for x
    x = 101,882,927,935.12/478,777.60
  6. Step 6: Final answer
    x = 212,798.03

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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.