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Finding the Fourth Proportional to 547,464.74, 755,085.11 and 471,111.11

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Solution

The fourth proportional to 547,464.74, 755,085.11 and 471,111.11 is: 649,775.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,464.74 : 755,085.11 = 471,111.11 : x
  2. Step 2: Convert to fraction form
    547,464.74/755,085.11 = 471,111.11/x
  3. Step 3: Cross multiply
    547,464.74x = 755,085.11 × 471,111.11
  4. Step 4: Simplify right side
    547,464.74x = 355,728,980,949.06
  5. Step 5: Solve for x
    x = 355,728,980,949.06/547,464.74
  6. Step 6: Final answer
    x = 649,775.14

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Double scale
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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.