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Finding the Fourth Proportional to 346,681.40, 520,022.10 and 197,382.20

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Solution

The fourth proportional to 346,681.40, 520,022.10 and 197,382.20 is: 296,073.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,681.40 : 520,022.10 = 197,382.20 : x
  2. Step 2: Convert to fraction form
    346,681.40/520,022.10 = 197,382.20/x
  3. Step 3: Cross multiply
    346,681.40x = 520,022.10 × 197,382.20
  4. Step 4: Simplify right side
    346,681.40x = 102,643,106,146.62
  5. Step 5: Solve for x
    x = 102,643,106,146.62/346,681.40
  6. Step 6: Final answer
    x = 296,073.30

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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.