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Finding the Fourth Proportional to 626,835.75, 865,033.34 and 358,563.75

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Solution

The fourth proportional to 626,835.75, 865,033.34 and 358,563.75 is: 494,817.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,835.75 : 865,033.34 = 358,563.75 : x
  2. Step 2: Convert to fraction form
    626,835.75/865,033.34 = 358,563.75/x
  3. Step 3: Cross multiply
    626,835.75x = 865,033.34 × 358,563.75
  4. Step 4: Simplify right side
    626,835.75x = 310,169,596,472.61
  5. Step 5: Solve for x
    x = 310,169,596,472.61/626,835.75
  6. Step 6: Final answer
    x = 494,817.98

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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.