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Finding the Fourth Proportional to 604,650.16, 834,761.38 and 400,976.05

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Solution

The fourth proportional to 604,650.16, 834,761.38 and 400,976.05 is: 553,575.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    604,650.16 : 834,761.38 = 400,976.05 : x
  2. Step 2: Convert to fraction form
    604,650.16/834,761.38 = 400,976.05/x
  3. Step 3: Cross multiply
    604,650.16x = 834,761.38 × 400,976.05
  4. Step 4: Simplify right side
    604,650.16x = 334,719,319,416.47
  5. Step 5: Solve for x
    x = 334,719,319,416.47/604,650.16
  6. Step 6: Final answer
    x = 553,575.18

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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.