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Finding the Fourth Proportional to 634,055.04, 874,994.40 and 347,576.40

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Solution

The fourth proportional to 634,055.04, 874,994.40 and 347,576.40 is: 479,654.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    634,055.04 : 874,994.40 = 347,576.40 : x
  2. Step 2: Convert to fraction form
    634,055.04/874,994.40 = 347,576.40/x
  3. Step 3: Cross multiply
    634,055.04x = 874,994.40 × 347,576.40
  4. Step 4: Simplify right side
    634,055.04x = 304,127,403,572.16
  5. Step 5: Solve for x
    x = 304,127,403,572.16/634,055.04
  6. Step 6: Final answer
    x = 479,654.58

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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.