Home / 863,643.34-1,295,184.34-287,111.87

Finding the Fourth Proportional to 863,643.34, 1,295,184.34 and 287,111.87

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Solution

The fourth proportional to 863,643.34, 1,295,184.34 and 287,111.87 is: 430,574.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    863,643.34 : 1,295,184.34 = 287,111.87 : x
  2. Step 2: Convert to fraction form
    863,643.34/1,295,184.34 = 287,111.87/x
  3. Step 3: Cross multiply
    863,643.34x = 1,295,184.34 × 287,111.87
  4. Step 4: Simplify right side
    863,643.34x = 371,862,796,592.03
  5. Step 5: Solve for x
    x = 371,862,796,592.03/863,643.34
  6. Step 6: Final answer
    x = 430,574.50

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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.