Home / 862,191.61-1,189,702.38-489,641.63

Finding the Fourth Proportional to 862,191.61, 1,189,702.38 and 489,641.63

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Solution

The fourth proportional to 862,191.61, 1,189,702.38 and 489,641.63 is: 675,636.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    862,191.61 : 1,189,702.38 = 489,641.63 : x
  2. Step 2: Convert to fraction form
    862,191.61/1,189,702.38 = 489,641.63/x
  3. Step 3: Cross multiply
    862,191.61x = 1,189,702.38 × 489,641.63
  4. Step 4: Simplify right side
    862,191.61x = 582,527,808,445.72
  5. Step 5: Solve for x
    x = 582,527,808,445.72/862,191.61
  6. Step 6: Final answer
    x = 675,636.14

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.