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Finding the Fourth Proportional to 612,035.40, 918,053.10 and 567,798.60

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Solution

The fourth proportional to 612,035.40, 918,053.10 and 567,798.60 is: 851,697.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,035.40 : 918,053.10 = 567,798.60 : x
  2. Step 2: Convert to fraction form
    612,035.40/918,053.10 = 567,798.60/x
  3. Step 3: Cross multiply
    612,035.40x = 918,053.10 × 567,798.60
  4. Step 4: Simplify right side
    612,035.40x = 521,269,264,905.66
  5. Step 5: Solve for x
    x = 521,269,264,905.66/612,035.40
  6. Step 6: Final answer
    x = 851,697.90

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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.