Home / 912,263.72-1,368,618.12-642,916.85

Finding the Fourth Proportional to 912,263.72, 1,368,618.12 and 642,916.85

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Solution

The fourth proportional to 912,263.72, 1,368,618.12 and 642,916.85 is: 964,532.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    912,263.72 : 1,368,618.12 = 642,916.85 : x
  2. Step 2: Convert to fraction form
    912,263.72/1,368,618.12 = 642,916.85/x
  3. Step 3: Cross multiply
    912,263.72x = 1,368,618.12 × 642,916.85
  4. Step 4: Simplify right side
    912,263.72x = 879,907,643,720.23
  5. Step 5: Solve for x
    x = 879,907,643,720.23/912,263.72
  6. Step 6: Final answer
    x = 964,532.11

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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.