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Finding the Fourth Proportional to 525,803.60, 788,705.40 and 189,005.60

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Solution

The fourth proportional to 525,803.60, 788,705.40 and 189,005.60 is: 283,508.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,803.60 : 788,705.40 = 189,005.60 : x
  2. Step 2: Convert to fraction form
    525,803.60/788,705.40 = 189,005.60/x
  3. Step 3: Cross multiply
    525,803.60x = 788,705.40 × 189,005.60
  4. Step 4: Simplify right side
    525,803.60x = 149,069,737,350.24
  5. Step 5: Solve for x
    x = 149,069,737,350.24/525,803.60
  6. Step 6: Final answer
    x = 283,508.40

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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.