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Finding the Fourth Proportional to 658,140.40, 987,210.60 and 184,841.20

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Solution

The fourth proportional to 658,140.40, 987,210.60 and 184,841.20 is: 277,261.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,140.40 : 987,210.60 = 184,841.20 : x
  2. Step 2: Convert to fraction form
    658,140.40/987,210.60 = 184,841.20/x
  3. Step 3: Cross multiply
    658,140.40x = 987,210.60 × 184,841.20
  4. Step 4: Simplify right side
    658,140.40x = 182,477,191,956.72
  5. Step 5: Solve for x
    x = 182,477,191,956.72/658,140.40
  6. Step 6: Final answer
    x = 277,261.80

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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.