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Finding the Fourth Proportional to 553,127.08, 830,346.72 and 465,472.12

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Solution

The fourth proportional to 553,127.08, 830,346.72 and 465,472.12 is: 698,760.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,127.08 : 830,346.72 = 465,472.12 : x
  2. Step 2: Convert to fraction form
    553,127.08/830,346.72 = 465,472.12/x
  3. Step 3: Cross multiply
    553,127.08x = 830,346.72 × 465,472.12
  4. Step 4: Simplify right side
    553,127.08x = 386,503,248,093.45
  5. Step 5: Solve for x
    x = 386,503,248,093.45/553,127.08
  6. Step 6: Final answer
    x = 698,760.31

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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.