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Finding the Fourth Proportional to 312,315.53, 468,276.45 and 264,947.23

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Solution

The fourth proportional to 312,315.53, 468,276.45 and 264,947.23 is: 397,253.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,315.53 : 468,276.45 = 264,947.23 : x
  2. Step 2: Convert to fraction form
    312,315.53/468,276.45 = 264,947.23/x
  3. Step 3: Cross multiply
    312,315.53x = 468,276.45 × 264,947.23
  4. Step 4: Simplify right side
    312,315.53x = 124,068,547,131.04
  5. Step 5: Solve for x
    x = 124,068,547,131.04/312,315.53
  6. Step 6: Final answer
    x = 397,253.86

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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.