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Finding the Fourth Proportional to 876,008.80, 1,314,013.20 and 767,533.60

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Solution

The fourth proportional to 876,008.80, 1,314,013.20 and 767,533.60 is: 1,151,300.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    876,008.80 : 1,314,013.20 = 767,533.60 : x
  2. Step 2: Convert to fraction form
    876,008.80/1,314,013.20 = 767,533.60/x
  3. Step 3: Cross multiply
    876,008.80x = 1,314,013.20 × 767,533.60
  4. Step 4: Simplify right side
    876,008.80x = 1,008,549,281,843.52
  5. Step 5: Solve for x
    x = 1,008,549,281,843.52/876,008.80
  6. Step 6: Final answer
    x = 1,151,300.40

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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.