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Finding the Fourth Proportional to 468,394.79, 646,386.48 and 253,534.59

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Solution

The fourth proportional to 468,394.79, 646,386.48 and 253,534.59 is: 349,878.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    468,394.79 : 646,386.48 = 253,534.59 : x
  2. Step 2: Convert to fraction form
    468,394.79/646,386.48 = 253,534.59/x
  3. Step 3: Cross multiply
    468,394.79x = 646,386.48 × 253,534.59
  4. Step 4: Simplify right side
    468,394.79x = 163,881,331,188.34
  5. Step 5: Solve for x
    x = 163,881,331,188.34/468,394.79
  6. Step 6: Final answer
    x = 349,878.64

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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.