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Finding the Fourth Proportional to 445,703.37, 615,308.90 and 348,701.01

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Solution

The fourth proportional to 445,703.37, 615,308.90 and 348,701.01 is: 481,393.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,703.37 : 615,308.90 = 348,701.01 : x
  2. Step 2: Convert to fraction form
    445,703.37/615,308.90 = 348,701.01/x
  3. Step 3: Cross multiply
    445,703.37x = 615,308.90 × 348,701.01
  4. Step 4: Simplify right side
    445,703.37x = 214,558,833,148.48
  5. Step 5: Solve for x
    x = 214,558,833,148.48/445,703.37
  6. Step 6: Final answer
    x = 481,393.79

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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.