Home / 1,217,705.70-1,826,558.55-319,145.70

Finding the Fourth Proportional to 1,217,705.70, 1,826,558.55 and 319,145.70

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Solution

The fourth proportional to 1,217,705.70, 1,826,558.55 and 319,145.70 is: 478,718.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,217,705.70 : 1,826,558.55 = 319,145.70 : x
  2. Step 2: Convert to fraction form
    1,217,705.70/1,826,558.55 = 319,145.70/x
  3. Step 3: Cross multiply
    1,217,705.70x = 1,826,558.55 × 319,145.70
  4. Step 4: Simplify right side
    1,217,705.70x = 582,938,307,030.74
  5. Step 5: Solve for x
    x = 582,938,307,030.74/1,217,705.70
  6. Step 6: Final answer
    x = 478,718.55

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Double scale
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Similar ratio
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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.