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Finding the Fourth Proportional to 452,121.40, 677,598.90 and 346,416.40

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Solution

The fourth proportional to 452,121.40, 677,598.90 and 346,416.40 is: 519,177.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    452,121.40 : 677,598.90 = 346,416.40 : x
  2. Step 2: Convert to fraction form
    452,121.40/677,598.90 = 346,416.40/x
  3. Step 3: Cross multiply
    452,121.40x = 677,598.90 × 346,416.40
  4. Step 4: Simplify right side
    452,121.40x = 234,731,371,581.96
  5. Step 5: Solve for x
    x = 234,731,371,581.96/452,121.40
  6. Step 6: Final answer
    x = 519,177.75

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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.