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Finding the Fourth Proportional to 407,731.70, 611,597.55 and 407,731.70

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Solution

The fourth proportional to 407,731.70, 611,597.55 and 407,731.70 is: 611,597.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    407,731.70 : 611,597.55 = 407,731.70 : x
  2. Step 2: Convert to fraction form
    407,731.70/611,597.55 = 407,731.70/x
  3. Step 3: Cross multiply
    407,731.70x = 611,597.55 × 407,731.70
  4. Step 4: Simplify right side
    407,731.70x = 249,367,708,777.34
  5. Step 5: Solve for x
    x = 249,367,708,777.34/407,731.70
  6. Step 6: Final answer
    x = 611,597.55

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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.