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Finding the Fourth Proportional to 468,073.44, 645,938.04 and 253,210.32

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Solution

The fourth proportional to 468,073.44, 645,938.04 and 253,210.32 is: 349,428.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    468,073.44 : 645,938.04 = 253,210.32 : x
  2. Step 2: Convert to fraction form
    468,073.44/645,938.04 = 253,210.32/x
  3. Step 3: Cross multiply
    468,073.44x = 645,938.04 × 253,210.32
  4. Step 4: Simplify right side
    468,073.44x = 163,558,177,808.57
  5. Step 5: Solve for x
    x = 163,558,177,808.57/468,073.44
  6. Step 6: Final answer
    x = 349,428.45

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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.