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Finding the Fourth Proportional to 553,136.64, 763,452.72 and 362,038.74

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Solution

The fourth proportional to 553,136.64, 763,452.72 and 362,038.74 is: 499,694.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,136.64 : 763,452.72 = 362,038.74 : x
  2. Step 2: Convert to fraction form
    553,136.64/763,452.72 = 362,038.74/x
  3. Step 3: Cross multiply
    553,136.64x = 763,452.72 × 362,038.74
  4. Step 4: Simplify right side
    553,136.64x = 276,399,460,798.37
  5. Step 5: Solve for x
    x = 276,399,460,798.37/553,136.64
  6. Step 6: Final answer
    x = 499,694.72

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Why These Related Problems?

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