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Finding the Fourth Proportional to 703,985.16, 971,506.74 and 381,695.88

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Solution

The fourth proportional to 703,985.16, 971,506.74 and 381,695.88 is: 526,744.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    703,985.16 : 971,506.74 = 381,695.88 : x
  2. Step 2: Convert to fraction form
    703,985.16/971,506.74 = 381,695.88/x
  3. Step 3: Cross multiply
    703,985.16x = 971,506.74 × 381,695.88
  4. Step 4: Simplify right side
    703,985.16x = 370,820,120,050.23
  5. Step 5: Solve for x
    x = 370,820,120,050.23/703,985.16
  6. Step 6: Final answer
    x = 526,744.23

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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.