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Finding the Fourth Proportional to 907,219.80, 1,360,829.70 and 623,784.60

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Solution

The fourth proportional to 907,219.80, 1,360,829.70 and 623,784.60 is: 935,676.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    907,219.80 : 1,360,829.70 = 623,784.60 : x
  2. Step 2: Convert to fraction form
    907,219.80/1,360,829.70 = 623,784.60/x
  3. Step 3: Cross multiply
    907,219.80x = 1,360,829.70 × 623,784.60
  4. Step 4: Simplify right side
    907,219.80x = 848,864,610,082.62
  5. Step 5: Solve for x
    x = 848,864,610,082.62/907,219.80
  6. Step 6: Final answer
    x = 935,676.90

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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.