Home / 785,218.19-1,083,325.07-513,445.16

Finding the Fourth Proportional to 785,218.19, 1,083,325.07 and 513,445.16

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Solution

The fourth proportional to 785,218.19, 1,083,325.07 and 513,445.16 is: 708,373.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    785,218.19 : 1,083,325.07 = 513,445.16 : x
  2. Step 2: Convert to fraction form
    785,218.19/1,083,325.07 = 513,445.16/x
  3. Step 3: Cross multiply
    785,218.19x = 1,083,325.07 × 513,445.16
  4. Step 4: Simplify right side
    785,218.19x = 556,228,017,890.09
  5. Step 5: Solve for x
    x = 556,228,017,890.09/785,218.19
  6. Step 6: Final answer
    x = 708,373.84

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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.