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Finding the Fourth Proportional to 605,087.55, 907,631.33 and 507,656.70

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Solution

The fourth proportional to 605,087.55, 907,631.33 and 507,656.70 is: 761,485.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    605,087.55 : 907,631.33 = 507,656.70 : x
  2. Step 2: Convert to fraction form
    605,087.55/907,631.33 = 507,656.70/x
  3. Step 3: Cross multiply
    605,087.55x = 907,631.33 × 507,656.70
  4. Step 4: Simplify right side
    605,087.55x = 460,765,123,266.13
  5. Step 5: Solve for x
    x = 460,765,123,266.13/605,087.55
  6. Step 6: Final answer
    x = 761,485.05

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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.