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Finding the Fourth Proportional to 504,717.51, 696,485.54 and 300,763.86

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Solution

The fourth proportional to 504,717.51, 696,485.54 and 300,763.86 is: 415,039.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    504,717.51 : 696,485.54 = 300,763.86 : x
  2. Step 2: Convert to fraction form
    504,717.51/696,485.54 = 300,763.86/x
  3. Step 3: Cross multiply
    504,717.51x = 696,485.54 × 300,763.86
  4. Step 4: Simplify right side
    504,717.51x = 209,477,677,940.77
  5. Step 5: Solve for x
    x = 209,477,677,940.77/504,717.51
  6. Step 6: Final answer
    x = 415,039.45

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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.