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Finding the Fourth Proportional to 700,612.68, 966,442.56 and 442,397.64

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Solution

The fourth proportional to 700,612.68, 966,442.56 and 442,397.64 is: 610,254.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    700,612.68 : 966,442.56 = 442,397.64 : x
  2. Step 2: Convert to fraction form
    700,612.68/966,442.56 = 442,397.64/x
  3. Step 3: Cross multiply
    700,612.68x = 966,442.56 × 442,397.64
  4. Step 4: Simplify right side
    700,612.68x = 427,551,907,739.56
  5. Step 5: Solve for x
    x = 427,551,907,739.56/700,612.68
  6. Step 6: Final answer
    x = 610,254.31

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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.