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Finding the Fourth Proportional to 828,287.70, 1,160,390.10 and 828,287.70

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Solution

The fourth proportional to 828,287.70, 1,160,390.10 and 828,287.70 is: 1,160,390.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    828,287.70 : 1,160,390.10 = 828,287.70 : x
  2. Step 2: Convert to fraction form
    828,287.70/1,160,390.10 = 828,287.70/x
  3. Step 3: Cross multiply
    828,287.70x = 1,160,390.10 × 828,287.70
  4. Step 4: Simplify right side
    828,287.70x = 961,136,847,031.77
  5. Step 5: Solve for x
    x = 961,136,847,031.77/828,287.70
  6. Step 6: Final answer
    x = 1,160,390.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.