Home / 976,697.43-1,465,398.50-520,809.18

Finding the Fourth Proportional to 976,697.43, 1,465,398.50 and 520,809.18

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Solution

The fourth proportional to 976,697.43, 1,465,398.50 and 520,809.18 is: 781,401.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    976,697.43 : 1,465,398.50 = 520,809.18 : x
  2. Step 2: Convert to fraction form
    976,697.43/1,465,398.50 = 520,809.18/x
  3. Step 3: Cross multiply
    976,697.43x = 1,465,398.50 × 520,809.18
  4. Step 4: Simplify right side
    976,697.43x = 763,192,988,554.18
  5. Step 5: Solve for x
    x = 763,192,988,554.18/976,697.43
  6. Step 6: Final answer
    x = 781,401.66

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1.5x scale

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.