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Finding the Fourth Proportional to 517,431, 776,150.01 and 197,496.59

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Solution

The fourth proportional to 517,431, 776,150.01 and 197,496.59 is: 296,246.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    517,431 : 776,150.01 = 197,496.59 : x
  2. Step 2: Convert to fraction form
    517,431/776,150.01 = 197,496.59/x
  3. Step 3: Cross multiply
    517,431x = 776,150.01 × 197,496.59
  4. Step 4: Simplify right side
    517,431x = 153,286,980,303.47
  5. Step 5: Solve for x
    x = 153,286,980,303.47/517,431
  6. Step 6: Final answer
    x = 296,246.22

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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.