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Finding the Fourth Proportional to 580,416.74, 800,931.19 and 325,718.72

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Solution

The fourth proportional to 580,416.74, 800,931.19 and 325,718.72 is: 449,467.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    580,416.74 : 800,931.19 = 325,718.72 : x
  2. Step 2: Convert to fraction form
    580,416.74/800,931.19 = 325,718.72/x
  3. Step 3: Cross multiply
    580,416.74x = 800,931.19 × 325,718.72
  4. Step 4: Simplify right side
    580,416.74x = 260,878,280,810.14
  5. Step 5: Solve for x
    x = 260,878,280,810.14/580,416.74
  6. Step 6: Final answer
    x = 449,467.19

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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.