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Finding the Fourth Proportional to 460,907.76, 636,055.44 and 256,971.54

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Solution

The fourth proportional to 460,907.76, 636,055.44 and 256,971.54 is: 354,622.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    460,907.76 : 636,055.44 = 256,971.54 : x
  2. Step 2: Convert to fraction form
    460,907.76/636,055.44 = 256,971.54/x
  3. Step 3: Cross multiply
    460,907.76x = 636,055.44 × 256,971.54
  4. Step 4: Simplify right side
    460,907.76x = 163,448,145,942.18
  5. Step 5: Solve for x
    x = 163,448,145,942.18/460,907.76
  6. Step 6: Final answer
    x = 354,622.25

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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.