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Finding the Fourth Proportional to 434,502.60, 651,753.90 and 403,009.80

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Solution

The fourth proportional to 434,502.60, 651,753.90 and 403,009.80 is: 604,514.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    434,502.60 : 651,753.90 = 403,009.80 : x
  2. Step 2: Convert to fraction form
    434,502.60/651,753.90 = 403,009.80/x
  3. Step 3: Cross multiply
    434,502.60x = 651,753.90 × 403,009.80
  4. Step 4: Simplify right side
    434,502.60x = 262,663,208,888.22
  5. Step 5: Solve for x
    x = 262,663,208,888.22/434,502.60
  6. Step 6: Final answer
    x = 604,514.70

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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.