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Finding the Fourth Proportional to 605,043.10, 907,564.65 and 577,486.90

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Solution

The fourth proportional to 605,043.10, 907,564.65 and 577,486.90 is: 866,230.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    605,043.10 : 907,564.65 = 577,486.90 : x
  2. Step 2: Convert to fraction form
    605,043.10/907,564.65 = 577,486.90/x
  3. Step 3: Cross multiply
    605,043.10x = 907,564.65 × 577,486.90
  4. Step 4: Simplify right side
    605,043.10x = 524,106,696,278.09
  5. Step 5: Solve for x
    x = 524,106,696,278.09/605,043.10
  6. Step 6: Final answer
    x = 866,230.35

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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.