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Finding the Fourth Proportional to 556,555.10, 768,046.28 and 314,832.51

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Solution

The fourth proportional to 556,555.10, 768,046.28 and 314,832.51 is: 434,469.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,555.10 : 768,046.28 = 314,832.51 : x
  2. Step 2: Convert to fraction form
    556,555.10/768,046.28 = 314,832.51/x
  3. Step 3: Cross multiply
    556,555.10x = 768,046.28 × 314,832.51
  4. Step 4: Simplify right side
    556,555.10x = 241,805,936,554.40
  5. Step 5: Solve for x
    x = 241,805,936,554.40/556,555.10
  6. Step 6: Final answer
    x = 434,469.00

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1.5x scale

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.