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Finding the Fourth Proportional to 554,400.40, 830,045.40 and 538,848.40

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Solution

The fourth proportional to 554,400.40, 830,045.40 and 538,848.40 is: 806,761.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,400.40 : 830,045.40 = 538,848.40 : x
  2. Step 2: Convert to fraction form
    554,400.40/830,045.40 = 538,848.40/x
  3. Step 3: Cross multiply
    554,400.40x = 830,045.40 × 538,848.40
  4. Step 4: Simplify right side
    554,400.40x = 447,268,635,717.36
  5. Step 5: Solve for x
    x = 447,268,635,717.36/554,400.40
  6. Step 6: Final answer
    x = 806,761.03

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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.