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Finding the Fourth Proportional to 587,124.06, 810,235.35 and 318,852.06

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Solution

The fourth proportional to 587,124.06, 810,235.35 and 318,852.06 is: 440,018.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    587,124.06 : 810,235.35 = 318,852.06 : x
  2. Step 2: Convert to fraction form
    587,124.06/810,235.35 = 318,852.06/x
  3. Step 3: Cross multiply
    587,124.06x = 810,235.35 × 318,852.06
  4. Step 4: Simplify right side
    587,124.06x = 258,345,210,432.32
  5. Step 5: Solve for x
    x = 258,345,210,432.32/587,124.06
  6. Step 6: Final answer
    x = 440,018.10

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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.