Home / 783,835.18-1,081,293.78-512,062.16

Finding the Fourth Proportional to 783,835.18, 1,081,293.78 and 512,062.16

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Solution

The fourth proportional to 783,835.18, 1,081,293.78 and 512,062.16 is: 706,385.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    783,835.18 : 1,081,293.78 = 512,062.16 : x
  2. Step 2: Convert to fraction form
    783,835.18/1,081,293.78 = 512,062.16/x
  3. Step 3: Cross multiply
    783,835.18x = 1,081,293.78 × 512,062.16
  4. Step 4: Simplify right side
    783,835.18x = 553,689,620,614.59
  5. Step 5: Solve for x
    x = 553,689,620,614.59/783,835.18
  6. Step 6: Final answer
    x = 706,385.26

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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.