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Finding the Fourth Proportional to 451,303.56, 623,082.08 and 290,438.16

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Solution

The fourth proportional to 451,303.56, 623,082.08 and 290,438.16 is: 400,986.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,303.56 : 623,082.08 = 290,438.16 : x
  2. Step 2: Convert to fraction form
    451,303.56/623,082.08 = 290,438.16/x
  3. Step 3: Cross multiply
    451,303.56x = 623,082.08 × 290,438.16
  4. Step 4: Simplify right side
    451,303.56x = 180,966,812,844.17
  5. Step 5: Solve for x
    x = 180,966,812,844.17/451,303.56
  6. Step 6: Final answer
    x = 400,986.89

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.