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Finding the Fourth Proportional to 525,695.10, 788,542.65 and 188,897.10

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Solution

The fourth proportional to 525,695.10, 788,542.65 and 188,897.10 is: 283,345.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,695.10 : 788,542.65 = 188,897.10 : x
  2. Step 2: Convert to fraction form
    525,695.10/788,542.65 = 188,897.10/x
  3. Step 3: Cross multiply
    525,695.10x = 788,542.65 × 188,897.10
  4. Step 4: Simplify right side
    525,695.10x = 148,953,419,811.32
  5. Step 5: Solve for x
    x = 148,953,419,811.32/525,695.10
  6. Step 6: Final answer
    x = 283,345.65

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Similar ratio
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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.