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Finding the Fourth Proportional to 434,576.40, 651,864.60 and 376,256.40

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Solution

The fourth proportional to 434,576.40, 651,864.60 and 376,256.40 is: 564,384.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    434,576.40 : 651,864.60 = 376,256.40 : x
  2. Step 2: Convert to fraction form
    434,576.40/651,864.60 = 376,256.40/x
  3. Step 3: Cross multiply
    434,576.40x = 651,864.60 × 376,256.40
  4. Step 4: Simplify right side
    434,576.40x = 245,268,227,683.44
  5. Step 5: Solve for x
    x = 245,268,227,683.44/434,576.40
  6. Step 6: Final answer
    x = 564,384.60

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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.