Home / 778,865.70-1,168,298.55-405,617.70

Finding the Fourth Proportional to 778,865.70, 1,168,298.55 and 405,617.70

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Solution

The fourth proportional to 778,865.70, 1,168,298.55 and 405,617.70 is: 608,426.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,865.70 : 1,168,298.55 = 405,617.70 : x
  2. Step 2: Convert to fraction form
    778,865.70/1,168,298.55 = 405,617.70/x
  3. Step 3: Cross multiply
    778,865.70x = 1,168,298.55 × 405,617.70
  4. Step 4: Simplify right side
    778,865.70x = 473,882,570,764.34
  5. Step 5: Solve for x
    x = 473,882,570,764.34/778,865.70
  6. Step 6: Final answer
    x = 608,426.55

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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.