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Finding the Fourth Proportional to 468,394.75, 646,386.37 and 253,534.76

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Solution

The fourth proportional to 468,394.75, 646,386.37 and 253,534.76 is: 349,878.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    468,394.75 : 646,386.37 = 253,534.76 : x
  2. Step 2: Convert to fraction form
    468,394.75/646,386.37 = 253,534.76/x
  3. Step 3: Cross multiply
    468,394.75x = 646,386.37 × 253,534.76
  4. Step 4: Simplify right side
    468,394.75x = 163,881,413,185.22
  5. Step 5: Solve for x
    x = 163,881,413,185.22/468,394.75
  6. Step 6: Final answer
    x = 349,878.84

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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.