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Finding the Fourth Proportional to 553,897.39, 764,380.49 and 350,038.91

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Solution

The fourth proportional to 553,897.39, 764,380.49 and 350,038.91 is: 483,055.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,897.39 : 764,380.49 = 350,038.91 : x
  2. Step 2: Convert to fraction form
    553,897.39/764,380.49 = 350,038.91/x
  3. Step 3: Cross multiply
    553,897.39x = 764,380.49 × 350,038.91
  4. Step 4: Simplify right side
    553,897.39x = 267,562,913,544.87
  5. Step 5: Solve for x
    x = 267,562,913,544.87/553,897.39
  6. Step 6: Final answer
    x = 483,055.02

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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.