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Finding the Fourth Proportional to 562,740.44, 776,655.77 and 320,967.59

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Solution

The fourth proportional to 562,740.44, 776,655.77 and 320,967.59 is: 442,977.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    562,740.44 : 776,655.77 = 320,967.59 : x
  2. Step 2: Convert to fraction form
    562,740.44/776,655.77 = 320,967.59/x
  3. Step 3: Cross multiply
    562,740.44x = 776,655.77 × 320,967.59
  4. Step 4: Simplify right side
    562,740.44x = 249,281,330,756.49
  5. Step 5: Solve for x
    x = 249,281,330,756.49/562,740.44
  6. Step 6: Final answer
    x = 442,977.46

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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.