Home / 862,946.40-1,190,871.56-480,997.40

Finding the Fourth Proportional to 862,946.40, 1,190,871.56 and 480,997.40

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Solution

The fourth proportional to 862,946.40, 1,190,871.56 and 480,997.40 is: 663,779.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    862,946.40 : 1,190,871.56 = 480,997.40 : x
  2. Step 2: Convert to fraction form
    862,946.40/1,190,871.56 = 480,997.40/x
  3. Step 3: Cross multiply
    862,946.40x = 1,190,871.56 × 480,997.40
  4. Step 4: Simplify right side
    862,946.40x = 572,806,124,093.94
  5. Step 5: Solve for x
    x = 572,806,124,093.94/862,946.40
  6. Step 6: Final answer
    x = 663,779.49

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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.