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Finding the Fourth Proportional to 566,988.07, 782,406.40 and 312,339.26

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Solution

The fourth proportional to 566,988.07, 782,406.40 and 312,339.26 is: 431,007.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    566,988.07 : 782,406.40 = 312,339.26 : x
  2. Step 2: Convert to fraction form
    566,988.07/782,406.40 = 312,339.26/x
  3. Step 3: Cross multiply
    566,988.07x = 782,406.40 × 312,339.26
  4. Step 4: Simplify right side
    566,988.07x = 244,376,235,995.26
  5. Step 5: Solve for x
    x = 244,376,235,995.26/566,988.07
  6. Step 6: Final answer
    x = 431,007.72

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1.5x scale

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.