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Finding the Fourth Proportional to 867,218.92, 1,300,080.84 and 335,113.32

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Solution

The fourth proportional to 867,218.92, 1,300,080.84 and 335,113.32 is: 502,381.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    867,218.92 : 1,300,080.84 = 335,113.32 : x
  2. Step 2: Convert to fraction form
    867,218.92/1,300,080.84 = 335,113.32/x
  3. Step 3: Cross multiply
    867,218.92x = 1,300,080.84 × 335,113.32
  4. Step 4: Simplify right side
    867,218.92x = 435,674,406,560.79
  5. Step 5: Solve for x
    x = 435,674,406,560.79/867,218.92
  6. Step 6: Final answer
    x = 502,381.11

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.