Home / 812,585.34-1,121,554.40-540,664.70

Finding the Fourth Proportional to 812,585.34, 1,121,554.40 and 540,664.70

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Solution

The fourth proportional to 812,585.34, 1,121,554.40 and 540,664.70 is: 746,241.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    812,585.34 : 1,121,554.40 = 540,664.70 : x
  2. Step 2: Convert to fraction form
    812,585.34/1,121,554.40 = 540,664.70/x
  3. Step 3: Cross multiply
    812,585.34x = 1,121,554.40 × 540,664.70
  4. Step 4: Simplify right side
    812,585.34x = 606,384,864,898.59
  5. Step 5: Solve for x
    x = 606,384,864,898.59/812,585.34
  6. Step 6: Final answer
    x = 746,241.45

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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.