Home / 786,689.20-1,085,351.16-464,237.92

Finding the Fourth Proportional to 786,689.20, 1,085,351.16 and 464,237.92

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Solution

The fourth proportional to 786,689.20, 1,085,351.16 and 464,237.92 is: 640,483.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    786,689.20 : 1,085,351.16 = 464,237.92 : x
  2. Step 2: Convert to fraction form
    786,689.20/1,085,351.16 = 464,237.92/x
  3. Step 3: Cross multiply
    786,689.20x = 1,085,351.16 × 464,237.92
  4. Step 4: Simplify right side
    786,689.20x = 503,861,164,987.99
  5. Step 5: Solve for x
    x = 503,861,164,987.99/786,689.20
  6. Step 6: Final answer
    x = 640,483.13

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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.