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Finding the Fourth Proportional to 590,995, 886,492.50 and 147,763

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Solution

The fourth proportional to 590,995, 886,492.50 and 147,763 is: 221,644.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    590,995 : 886,492.50 = 147,763 : x
  2. Step 2: Convert to fraction form
    590,995/886,492.50 = 147,763/x
  3. Step 3: Cross multiply
    590,995x = 886,492.50 × 147,763
  4. Step 4: Simplify right side
    590,995x = 130,990,791,277.50
  5. Step 5: Solve for x
    x = 130,990,791,277.50/590,995
  6. Step 6: Final answer
    x = 221,644.50

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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.