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Finding the Fourth Proportional to 562,741.06, 776,656.62 and 320,968.24

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Solution

The fourth proportional to 562,741.06, 776,656.62 and 320,968.24 is: 442,978.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    562,741.06 : 776,656.62 = 320,968.24 : x
  2. Step 2: Convert to fraction form
    562,741.06/776,656.62 = 320,968.24/x
  3. Step 3: Cross multiply
    562,741.06x = 776,656.62 × 320,968.24
  4. Step 4: Simplify right side
    562,741.06x = 249,282,108,405.75
  5. Step 5: Solve for x
    x = 249,282,108,405.75/562,741.06
  6. Step 6: Final answer
    x = 442,978.35

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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.