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Finding the Fourth Proportional to 865,364.83, 1,298,511.99 and 360,274.45

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Solution

The fourth proportional to 865,364.83, 1,298,511.99 and 360,274.45 is: 540,605.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    865,364.83 : 1,298,511.99 = 360,274.45 : x
  2. Step 2: Convert to fraction form
    865,364.83/1,298,511.99 = 360,274.45/x
  3. Step 3: Cross multiply
    865,364.83x = 1,298,511.99 × 360,274.45
  4. Step 4: Simplify right side
    865,364.83x = 467,820,693,015.66
  5. Step 5: Solve for x
    x = 467,820,693,015.66/865,364.83
  6. Step 6: Final answer
    x = 540,605.16

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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.