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Finding the Fourth Proportional to 506,522.20, 759,783.30 and 317,565.40

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Solution

The fourth proportional to 506,522.20, 759,783.30 and 317,565.40 is: 476,348.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    506,522.20 : 759,783.30 = 317,565.40 : x
  2. Step 2: Convert to fraction form
    506,522.20/759,783.30 = 317,565.40/x
  3. Step 3: Cross multiply
    506,522.20x = 759,783.30 × 317,565.40
  4. Step 4: Simplify right side
    506,522.20x = 241,280,887,577.82
  5. Step 5: Solve for x
    x = 241,280,887,577.82/506,522.20
  6. Step 6: Final answer
    x = 476,348.10

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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.