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Finding the Fourth Proportional to 540,014.80, 808,855.80 and 470,030.80

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Solution

The fourth proportional to 540,014.80, 808,855.80 and 470,030.80 is: 704,030.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,014.80 : 808,855.80 = 470,030.80 : x
  2. Step 2: Convert to fraction form
    540,014.80/808,855.80 = 470,030.80/x
  3. Step 3: Cross multiply
    540,014.80x = 808,855.80 × 470,030.80
  4. Step 4: Simplify right side
    540,014.80x = 380,187,138,758.64
  5. Step 5: Solve for x
    x = 380,187,138,758.64/540,014.80
  6. Step 6: Final answer
    x = 704,030.96

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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.