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Finding the Fourth Proportional to 545,934.61, 753,392.70 and 316,627.79

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Solution

The fourth proportional to 545,934.61, 753,392.70 and 316,627.79 is: 436,948.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,934.61 : 753,392.70 = 316,627.79 : x
  2. Step 2: Convert to fraction form
    545,934.61/753,392.70 = 316,627.79/x
  3. Step 3: Cross multiply
    545,934.61x = 753,392.70 × 316,627.79
  4. Step 4: Simplify right side
    545,934.61x = 238,545,067,486.62
  5. Step 5: Solve for x
    x = 238,545,067,486.62/545,934.61
  6. Step 6: Final answer
    x = 436,948.06

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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.