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Finding the Fourth Proportional to 651,218.96, 898,188.01 and 570,506.31

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Solution

The fourth proportional to 651,218.96, 898,188.01 and 570,506.31 is: 786,865.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    651,218.96 : 898,188.01 = 570,506.31 : x
  2. Step 2: Convert to fraction form
    651,218.96/898,188.01 = 570,506.31/x
  3. Step 3: Cross multiply
    651,218.96x = 898,188.01 × 570,506.31
  4. Step 4: Simplify right side
    651,218.96x = 512,421,925,845.08
  5. Step 5: Solve for x
    x = 512,421,925,845.08/651,218.96
  6. Step 6: Final answer
    x = 786,865.79

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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.