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Finding the Fourth Proportional to 415,307.70, 573,148.44 and 254,117.70

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Solution

The fourth proportional to 415,307.70, 573,148.44 and 254,117.70 is: 350,697.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    415,307.70 : 573,148.44 = 254,117.70 : x
  2. Step 2: Convert to fraction form
    415,307.70/573,148.44 = 254,117.70/x
  3. Step 3: Cross multiply
    415,307.70x = 573,148.44 × 254,117.70
  4. Step 4: Simplify right side
    415,307.70x = 145,647,163,331.39
  5. Step 5: Solve for x
    x = 145,647,163,331.39/415,307.70
  6. Step 6: Final answer
    x = 350,697.00

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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.