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Finding the Fourth Proportional to 617,934.60, 926,901.90 and 352,513.80

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Solution

The fourth proportional to 617,934.60, 926,901.90 and 352,513.80 is: 528,770.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,934.60 : 926,901.90 = 352,513.80 : x
  2. Step 2: Convert to fraction form
    617,934.60/926,901.90 = 352,513.80/x
  3. Step 3: Cross multiply
    617,934.60x = 926,901.90 × 352,513.80
  4. Step 4: Simplify right side
    617,934.60x = 326,745,710,996.22
  5. Step 5: Solve for x
    x = 326,745,710,996.22/617,934.60
  6. Step 6: Final answer
    x = 528,770.70

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Double scale
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Similar ratio
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1.5x scale

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.