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Finding the Fourth Proportional to 503,923.35, 695,415.18 and 274,479.93

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Solution

The fourth proportional to 503,923.35, 695,415.18 and 274,479.93 is: 378,782.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    503,923.35 : 695,415.18 = 274,479.93 : x
  2. Step 2: Convert to fraction form
    503,923.35/695,415.18 = 274,479.93/x
  3. Step 3: Cross multiply
    503,923.35x = 695,415.18 × 274,479.93
  4. Step 4: Simplify right side
    503,923.35x = 190,877,509,927.34
  5. Step 5: Solve for x
    x = 190,877,509,927.34/503,923.35
  6. Step 6: Final answer
    x = 378,782.82

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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.