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Finding the Fourth Proportional to 700,410.16, 966,569.92 and 398,604.16

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Solution

The fourth proportional to 700,410.16, 966,569.92 and 398,604.16 is: 550,075.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    700,410.16 : 966,569.92 = 398,604.16 : x
  2. Step 2: Convert to fraction form
    700,410.16/966,569.92 = 398,604.16/x
  3. Step 3: Cross multiply
    700,410.16x = 966,569.92 × 398,604.16
  4. Step 4: Simplify right side
    700,410.16x = 385,278,791,042.87
  5. Step 5: Solve for x
    x = 385,278,791,042.87/700,410.16
  6. Step 6: Final answer
    x = 550,075.96

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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.