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Finding the Fourth Proportional to 452,837.40, 679,158.90 and 200,117.40

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Solution

The fourth proportional to 452,837.40, 679,158.90 and 200,117.40 is: 300,133.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    452,837.40 : 679,158.90 = 200,117.40 : x
  2. Step 2: Convert to fraction form
    452,837.40/679,158.90 = 200,117.40/x
  3. Step 3: Cross multiply
    452,837.40x = 679,158.90 × 200,117.40
  4. Step 4: Simplify right side
    452,837.40x = 135,911,513,254.86
  5. Step 5: Solve for x
    x = 135,911,513,254.86/452,837.40
  6. Step 6: Final answer
    x = 300,133.15

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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.