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Finding the Fourth Proportional to 562,514.60, 776,272.21 and 304,391.55

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Solution

The fourth proportional to 562,514.60, 776,272.21 and 304,391.55 is: 420,061.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    562,514.60 : 776,272.21 = 304,391.55 : x
  2. Step 2: Convert to fraction form
    562,514.60/776,272.21 = 304,391.55/x
  3. Step 3: Cross multiply
    562,514.60x = 776,272.21 × 304,391.55
  4. Step 4: Simplify right side
    562,514.60x = 236,290,701,223.83
  5. Step 5: Solve for x
    x = 236,290,701,223.83/562,514.60
  6. Step 6: Final answer
    x = 420,061.45

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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.