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Finding the Fourth Proportional to 713,573.80, 1,070,360.70 and 573,605.80

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Solution

The fourth proportional to 713,573.80, 1,070,360.70 and 573,605.80 is: 860,408.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    713,573.80 : 1,070,360.70 = 573,605.80 : x
  2. Step 2: Convert to fraction form
    713,573.80/1,070,360.70 = 573,605.80/x
  3. Step 3: Cross multiply
    713,573.80x = 1,070,360.70 × 573,605.80
  4. Step 4: Simplify right side
    713,573.80x = 613,965,105,612.06
  5. Step 5: Solve for x
    x = 613,965,105,612.06/713,573.80
  6. Step 6: Final answer
    x = 860,408.70

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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.