Home / 927,095.32-1,390,858.68-287,365.12

Finding the Fourth Proportional to 927,095.32, 1,390,858.68 and 287,365.12

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Solution

The fourth proportional to 927,095.32, 1,390,858.68 and 287,365.12 is: 431,114.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    927,095.32 : 1,390,858.68 = 287,365.12 : x
  2. Step 2: Convert to fraction form
    927,095.32/1,390,858.68 = 287,365.12/x
  3. Step 3: Cross multiply
    927,095.32x = 1,390,858.68 × 287,365.12
  4. Step 4: Simplify right side
    927,095.32x = 399,684,271,481.24
  5. Step 5: Solve for x
    x = 399,684,271,481.24/927,095.32
  6. Step 6: Final answer
    x = 431,114.54

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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.