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Finding the Fourth Proportional to 562,803.21, 776,514.47 and 361,715.85

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Solution

The fourth proportional to 562,803.21, 776,514.47 and 361,715.85 is: 499,068.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    562,803.21 : 776,514.47 = 361,715.85 : x
  2. Step 2: Convert to fraction form
    562,803.21/776,514.47 = 361,715.85/x
  3. Step 3: Cross multiply
    562,803.21x = 776,514.47 × 361,715.85
  4. Step 4: Simplify right side
    562,803.21x = 280,877,589,744.77
  5. Step 5: Solve for x
    x = 280,877,589,744.77/562,803.21
  6. Step 6: Final answer
    x = 499,068.92

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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.