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Finding the Fourth Proportional to 468,576.96, 646,152.88 and 400,818.24

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Solution

The fourth proportional to 468,576.96, 646,152.88 and 400,818.24 is: 552,715.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    468,576.96 : 646,152.88 = 400,818.24 : x
  2. Step 2: Convert to fraction form
    468,576.96/646,152.88 = 400,818.24/x
  3. Step 3: Cross multiply
    468,576.96x = 646,152.88 × 400,818.24
  4. Step 4: Simplify right side
    468,576.96x = 258,989,860,132.53
  5. Step 5: Solve for x
    x = 258,989,860,132.53/468,576.96
  6. Step 6: Final answer
    x = 552,715.74

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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.