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Finding the Fourth Proportional to 651,347.87, 898,601.45 and 406,188.41

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Solution

The fourth proportional to 651,347.87, 898,601.45 and 406,188.41 is: 560,378.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    651,347.87 : 898,601.45 = 406,188.41 : x
  2. Step 2: Convert to fraction form
    651,347.87/898,601.45 = 406,188.41/x
  3. Step 3: Cross multiply
    651,347.87x = 898,601.45 × 406,188.41
  4. Step 4: Simplify right side
    651,347.87x = 365,001,487,675.25
  5. Step 5: Solve for x
    x = 365,001,487,675.25/651,347.87
  6. Step 6: Final answer
    x = 560,378.73

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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.