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Finding the Fourth Proportional to 671,649.42, 1,006,418.82 and 469,045.74

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Solution

The fourth proportional to 671,649.42, 1,006,418.82 and 469,045.74 is: 702,831.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    671,649.42 : 1,006,418.82 = 469,045.74 : x
  2. Step 2: Convert to fraction form
    671,649.42/1,006,418.82 = 469,045.74/x
  3. Step 3: Cross multiply
    671,649.42x = 1,006,418.82 × 469,045.74
  4. Step 4: Simplify right side
    671,649.42x = 472,056,460,176.83
  5. Step 5: Solve for x
    x = 472,056,460,176.83/671,649.42
  6. Step 6: Final answer
    x = 702,831.64

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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.