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Finding the Fourth Proportional to 620,536.84, 856,392.42 and 365,937.64

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Solution

The fourth proportional to 620,536.84, 856,392.42 and 365,937.64 is: 505,024.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    620,536.84 : 856,392.42 = 365,937.64 : x
  2. Step 2: Convert to fraction form
    620,536.84/856,392.42 = 365,937.64/x
  3. Step 3: Cross multiply
    620,536.84x = 856,392.42 × 365,937.64
  4. Step 4: Simplify right side
    620,536.84x = 313,386,221,088.69
  5. Step 5: Solve for x
    x = 313,386,221,088.69/620,536.84
  6. Step 6: Final answer
    x = 505,024.36

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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.