Home / 623,071.45-859,856.31-347,435.65

Finding the Fourth Proportional to 623,071.45, 859,856.31 and 347,435.65

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Solution

The fourth proportional to 623,071.45, 859,856.31 and 347,435.65 is: 479,471.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    623,071.45 : 859,856.31 = 347,435.65 : x
  2. Step 2: Convert to fraction form
    623,071.45/859,856.31 = 347,435.65/x
  3. Step 3: Cross multiply
    623,071.45x = 859,856.31 × 347,435.65
  4. Step 4: Simplify right side
    623,071.45x = 298,744,735,971.45
  5. Step 5: Solve for x
    x = 298,744,735,971.45/623,071.45
  6. Step 6: Final answer
    x = 479,471.07

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Double scale
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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.