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Finding the Fourth Proportional to 526,957.54, 727,620.60 and 486,656.56

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Solution

The fourth proportional to 526,957.54, 727,620.60 and 486,656.56 is: 671,973.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,957.54 : 727,620.60 = 486,656.56 : x
  2. Step 2: Convert to fraction form
    526,957.54/727,620.60 = 486,656.56/x
  3. Step 3: Cross multiply
    526,957.54x = 727,620.60 × 486,656.56
  4. Step 4: Simplify right side
    526,957.54x = 354,101,338,181.14
  5. Step 5: Solve for x
    x = 354,101,338,181.14/526,957.54
  6. Step 6: Final answer
    x = 671,973.19

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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.