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Finding the Fourth Proportional to 867,051.42, 1,300,552.74 and 235,970.70

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Solution

The fourth proportional to 867,051.42, 1,300,552.74 and 235,970.70 is: 353,949.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    867,051.42 : 1,300,552.74 = 235,970.70 : x
  2. Step 2: Convert to fraction form
    867,051.42/1,300,552.74 = 235,970.70/x
  3. Step 3: Cross multiply
    867,051.42x = 1,300,552.74 × 235,970.70
  4. Step 4: Simplify right side
    867,051.42x = 306,892,340,444.72
  5. Step 5: Solve for x
    x = 306,892,340,444.72/867,051.42
  6. Step 6: Final answer
    x = 353,949.41

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Double scale
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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.