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Finding the Fourth Proportional to 663,373.64, 915,586.30 and 462,053

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Solution

The fourth proportional to 663,373.64, 915,586.30 and 462,053 is: 637,724.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    663,373.64 : 915,586.30 = 462,053 : x
  2. Step 2: Convert to fraction form
    663,373.64/915,586.30 = 462,053/x
  3. Step 3: Cross multiply
    663,373.64x = 915,586.30 × 462,053
  4. Step 4: Simplify right side
    663,373.64x = 423,049,396,673.90
  5. Step 5: Solve for x
    x = 423,049,396,673.90/663,373.64
  6. Step 6: Final answer
    x = 637,724.16

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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.