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Finding the Fourth Proportional to 476,664.93, 717,574.38 and 434,243.01

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Solution

The fourth proportional to 476,664.93, 717,574.38 and 434,243.01 is: 653,712.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    476,664.93 : 717,574.38 = 434,243.01 : x
  2. Step 2: Convert to fraction form
    476,664.93/717,574.38 = 434,243.01/x
  3. Step 3: Cross multiply
    476,664.93x = 717,574.38 × 434,243.01
  4. Step 4: Simplify right side
    476,664.93x = 311,601,658,670.08
  5. Step 5: Solve for x
    x = 311,601,658,670.08/476,664.93
  6. Step 6: Final answer
    x = 653,712.16

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.