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Finding the Fourth Proportional to 762,294.40, 1,052,030.88 and 422,872

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Solution

The fourth proportional to 762,294.40, 1,052,030.88 and 422,872 is: 583,599.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    762,294.40 : 1,052,030.88 = 422,872 : x
  2. Step 2: Convert to fraction form
    762,294.40/1,052,030.88 = 422,872/x
  3. Step 3: Cross multiply
    762,294.40x = 1,052,030.88 × 422,872
  4. Step 4: Simplify right side
    762,294.40x = 444,874,402,287.36
  5. Step 5: Solve for x
    x = 444,874,402,287.36/762,294.40
  6. Step 6: Final answer
    x = 583,599.20

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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.