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Finding the Fourth Proportional to 651,215.09, 898,182.61 and 570,502.51

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Solution

The fourth proportional to 651,215.09, 898,182.61 and 570,502.51 is: 786,860.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    651,215.09 : 898,182.61 = 570,502.51 : x
  2. Step 2: Convert to fraction form
    651,215.09/898,182.61 = 570,502.51/x
  3. Step 3: Cross multiply
    651,215.09x = 898,182.61 × 570,502.51
  4. Step 4: Simplify right side
    651,215.09x = 512,415,429,771.64
  5. Step 5: Solve for x
    x = 512,415,429,771.64/651,215.09
  6. Step 6: Final answer
    x = 786,860.49

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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.