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Finding the Fourth Proportional to 525,407.09, 788,221.35 and 170,393.45

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Solution

The fourth proportional to 525,407.09, 788,221.35 and 170,393.45 is: 255,626.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,407.09 : 788,221.35 = 170,393.45 : x
  2. Step 2: Convert to fraction form
    525,407.09/788,221.35 = 170,393.45/x
  3. Step 3: Cross multiply
    525,407.09x = 788,221.35 × 170,393.45
  4. Step 4: Simplify right side
    525,407.09x = 134,307,751,249.05
  5. Step 5: Solve for x
    x = 134,307,751,249.05/525,407.09
  6. Step 6: Final answer
    x = 255,626.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.