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Finding the Fourth Proportional to 700,057.20, 1,050,085.80 and 401,458.80

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Solution

The fourth proportional to 700,057.20, 1,050,085.80 and 401,458.80 is: 602,188.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    700,057.20 : 1,050,085.80 = 401,458.80 : x
  2. Step 2: Convert to fraction form
    700,057.20/1,050,085.80 = 401,458.80/x
  3. Step 3: Cross multiply
    700,057.20x = 1,050,085.80 × 401,458.80
  4. Step 4: Simplify right side
    700,057.20x = 421,566,185,165.04
  5. Step 5: Solve for x
    x = 421,566,185,165.04/700,057.20
  6. Step 6: Final answer
    x = 602,188.20

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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.