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Finding the Fourth Proportional to 415,376.60, 573,218.98 and 224,389.40

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Solution

The fourth proportional to 415,376.60, 573,218.98 and 224,389.40 is: 309,656.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    415,376.60 : 573,218.98 = 224,389.40 : x
  2. Step 2: Convert to fraction form
    415,376.60/573,218.98 = 224,389.40/x
  3. Step 3: Cross multiply
    415,376.60x = 573,218.98 × 224,389.40
  4. Step 4: Simplify right side
    415,376.60x = 128,624,259,563.74
  5. Step 5: Solve for x
    x = 128,624,259,563.74/415,376.60
  6. Step 6: Final answer
    x = 309,656.97

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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.