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Finding the Fourth Proportional to 630,016.40, 943,712.40 and 525,040.40

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Solution

The fourth proportional to 630,016.40, 943,712.40 and 525,040.40 is: 786,467.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,016.40 : 943,712.40 = 525,040.40 : x
  2. Step 2: Convert to fraction form
    630,016.40/943,712.40 = 525,040.40/x
  3. Step 3: Cross multiply
    630,016.40x = 943,712.40 × 525,040.40
  4. Step 4: Simplify right side
    630,016.40x = 495,487,135,980.96
  5. Step 5: Solve for x
    x = 495,487,135,980.96/630,016.40
  6. Step 6: Final answer
    x = 786,467.04

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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.