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Finding the Fourth Proportional to 876,652.05, 1,314,978.08 and 666,700.05

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Solution

The fourth proportional to 876,652.05, 1,314,978.08 and 666,700.05 is: 1,000,050.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    876,652.05 : 1,314,978.08 = 666,700.05 : x
  2. Step 2: Convert to fraction form
    876,652.05/1,314,978.08 = 666,700.05/x
  3. Step 3: Cross multiply
    876,652.05x = 1,314,978.08 × 666,700.05
  4. Step 4: Simplify right side
    876,652.05x = 876,695,948,351.40
  5. Step 5: Solve for x
    x = 876,695,948,351.40/876,652.05
  6. Step 6: Final answer
    x = 1,000,050.08

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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.