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Finding the Fourth Proportional to 525,886.40, 788,829.60 and 146,806.40

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Solution

The fourth proportional to 525,886.40, 788,829.60 and 146,806.40 is: 220,209.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,886.40 : 788,829.60 = 146,806.40 : x
  2. Step 2: Convert to fraction form
    525,886.40/788,829.60 = 146,806.40/x
  3. Step 3: Cross multiply
    525,886.40x = 788,829.60 × 146,806.40
  4. Step 4: Simplify right side
    525,886.40x = 115,805,233,789.44
  5. Step 5: Solve for x
    x = 115,805,233,789.44/525,886.40
  6. Step 6: Final answer
    x = 220,209.60

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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.