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Finding the Fourth Proportional to 653,393.64, 901,986.30 and 435,963.72

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Solution

The fourth proportional to 653,393.64, 901,986.30 and 435,963.72 is: 601,832.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    653,393.64 : 901,986.30 = 435,963.72 : x
  2. Step 2: Convert to fraction form
    653,393.64/901,986.30 = 435,963.72/x
  3. Step 3: Cross multiply
    653,393.64x = 901,986.30 × 435,963.72
  4. Step 4: Simplify right side
    653,393.64x = 393,233,302,737.04
  5. Step 5: Solve for x
    x = 393,233,302,737.04/653,393.64
  6. Step 6: Final answer
    x = 601,832.16

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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.