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Finding the Fourth Proportional to 584,804.40, 876,040.20 and 407,511.60

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Solution

The fourth proportional to 584,804.40, 876,040.20 and 407,511.60 is: 610,454.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    584,804.40 : 876,040.20 = 407,511.60 : x
  2. Step 2: Convert to fraction form
    584,804.40/876,040.20 = 407,511.60/x
  3. Step 3: Cross multiply
    584,804.40x = 876,040.20 × 407,511.60
  4. Step 4: Simplify right side
    584,804.40x = 356,996,543,566.32
  5. Step 5: Solve for x
    x = 356,996,543,566.32/584,804.40
  6. Step 6: Final answer
    x = 610,454.61

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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.