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Finding the Fourth Proportional to 584,166.25, 806,149.47 and 315,894.25

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Solution

The fourth proportional to 584,166.25, 806,149.47 and 315,894.25 is: 435,934.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    584,166.25 : 806,149.47 = 315,894.25 : x
  2. Step 2: Convert to fraction form
    584,166.25/806,149.47 = 315,894.25/x
  3. Step 3: Cross multiply
    584,166.25x = 806,149.47 × 315,894.25
  4. Step 4: Simplify right side
    584,166.25x = 254,657,980,634.08
  5. Step 5: Solve for x
    x = 254,657,980,634.08/584,166.25
  6. Step 6: Final answer
    x = 435,934.09

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Half scale
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Double scale
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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.