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Finding the Fourth Proportional to 768,410.23, 1,060,407.59 and 424,246.83

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Solution

The fourth proportional to 768,410.23, 1,060,407.59 and 424,246.83 is: 585,461.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    768,410.23 : 1,060,407.59 = 424,246.83 : x
  2. Step 2: Convert to fraction form
    768,410.23/1,060,407.59 = 424,246.83/x
  3. Step 3: Cross multiply
    768,410.23x = 1,060,407.59 × 424,246.83
  4. Step 4: Simplify right side
    768,410.23x = 449,874,558,565.44
  5. Step 5: Solve for x
    x = 449,874,558,565.44/768,410.23
  6. Step 6: Final answer
    x = 585,461.44

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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.