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Finding the Fourth Proportional to 604,832.10, 907,248.15 and 309,920.10

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Solution

The fourth proportional to 604,832.10, 907,248.15 and 309,920.10 is: 464,880.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    604,832.10 : 907,248.15 = 309,920.10 : x
  2. Step 2: Convert to fraction form
    604,832.10/907,248.15 = 309,920.10/x
  3. Step 3: Cross multiply
    604,832.10x = 907,248.15 × 309,920.10
  4. Step 4: Simplify right side
    604,832.10x = 281,174,437,372.82
  5. Step 5: Solve for x
    x = 281,174,437,372.82/604,832.10
  6. Step 6: Final answer
    x = 464,880.15

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Similar ratio
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1.5x scale

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.