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Finding the Fourth Proportional to 672,424.40, 927,915.72 and 370,600.40

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Solution

The fourth proportional to 672,424.40, 927,915.72 and 370,600.40 is: 511,412.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,424.40 : 927,915.72 = 370,600.40 : x
  2. Step 2: Convert to fraction form
    672,424.40/927,915.72 = 370,600.40/x
  3. Step 3: Cross multiply
    672,424.40x = 927,915.72 × 370,600.40
  4. Step 4: Simplify right side
    672,424.40x = 343,885,936,998.29
  5. Step 5: Solve for x
    x = 343,885,936,998.29/672,424.40
  6. Step 6: Final answer
    x = 511,412.04

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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.