Home / 863,280.92-1,295,139.12-286,907.23

Finding the Fourth Proportional to 863,280.92, 1,295,139.12 and 286,907.23

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Solution

The fourth proportional to 863,280.92, 1,295,139.12 and 286,907.23 is: 430,433.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    863,280.92 : 1,295,139.12 = 286,907.23 : x
  2. Step 2: Convert to fraction form
    863,280.92/1,295,139.12 = 286,907.23/x
  3. Step 3: Cross multiply
    863,280.92x = 1,295,139.12 × 286,907.23
  4. Step 4: Simplify right side
    863,280.92x = 371,584,774,145.99
  5. Step 5: Solve for x
    x = 371,584,774,145.99/863,280.92
  6. Step 6: Final answer
    x = 430,433.20

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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.