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Finding the Fourth Proportional to 525,862.40, 788,793.60 and 193,395.20

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Solution

The fourth proportional to 525,862.40, 788,793.60 and 193,395.20 is: 290,092.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,862.40 : 788,793.60 = 193,395.20 : x
  2. Step 2: Convert to fraction form
    525,862.40/788,793.60 = 193,395.20/x
  3. Step 3: Cross multiply
    525,862.40x = 788,793.60 × 193,395.20
  4. Step 4: Simplify right side
    525,862.40x = 152,548,896,030.72
  5. Step 5: Solve for x
    x = 152,548,896,030.72/525,862.40
  6. Step 6: Final answer
    x = 290,092.80

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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.