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Finding the Fourth Proportional to 503,923.60, 695,415.52 and 274,480.16

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Solution

The fourth proportional to 503,923.60, 695,415.52 and 274,480.16 is: 378,783.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    503,923.60 : 695,415.52 = 274,480.16 : x
  2. Step 2: Convert to fraction form
    503,923.60/695,415.52 = 274,480.16/x
  3. Step 3: Cross multiply
    503,923.60x = 695,415.52 × 274,480.16
  4. Step 4: Simplify right side
    503,923.60x = 190,877,763,196.08
  5. Step 5: Solve for x
    x = 190,877,763,196.08/503,923.60
  6. Step 6: Final answer
    x = 378,783.14

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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.