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Finding the Fourth Proportional to 434,516.70, 651,775.05 and 185,166.30

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Solution

The fourth proportional to 434,516.70, 651,775.05 and 185,166.30 is: 277,749.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    434,516.70 : 651,775.05 = 185,166.30 : x
  2. Step 2: Convert to fraction form
    434,516.70/651,775.05 = 185,166.30/x
  3. Step 3: Cross multiply
    434,516.70x = 651,775.05 × 185,166.30
  4. Step 4: Simplify right side
    434,516.70x = 120,686,774,440.82
  5. Step 5: Solve for x
    x = 120,686,774,440.82/434,516.70
  6. Step 6: Final answer
    x = 277,749.45

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Double scale
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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.