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Finding the Fourth Proportional to 719,824.88, 993,358.33 and 418,038.32

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Solution

The fourth proportional to 719,824.88, 993,358.33 and 418,038.32 is: 576,892.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    719,824.88 : 993,358.33 = 418,038.32 : x
  2. Step 2: Convert to fraction form
    719,824.88/993,358.33 = 418,038.32/x
  3. Step 3: Cross multiply
    719,824.88x = 993,358.33 × 418,038.32
  4. Step 4: Simplify right side
    719,824.88x = 415,261,842,464.41
  5. Step 5: Solve for x
    x = 415,261,842,464.41/719,824.88
  6. Step 6: Final answer
    x = 576,892.88

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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.