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Finding the Fourth Proportional to 695,775.60, 1,041,330.60 and 611,794.80

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Solution

The fourth proportional to 695,775.60, 1,041,330.60 and 611,794.80 is: 915,640.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    695,775.60 : 1,041,330.60 = 611,794.80 : x
  2. Step 2: Convert to fraction form
    695,775.60/1,041,330.60 = 611,794.80/x
  3. Step 3: Cross multiply
    695,775.60x = 1,041,330.60 × 611,794.80
  4. Step 4: Simplify right side
    695,775.60x = 637,080,646,160.88
  5. Step 5: Solve for x
    x = 637,080,646,160.88/695,775.60
  6. Step 6: Final answer
    x = 915,640.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.