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Finding the Fourth Proportional to 651,680.53, 898,999.54 and 565,518.58

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Solution

The fourth proportional to 651,680.53, 898,999.54 and 565,518.58 is: 780,138.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    651,680.53 : 898,999.54 = 565,518.58 : x
  2. Step 2: Convert to fraction form
    651,680.53/898,999.54 = 565,518.58/x
  3. Step 3: Cross multiply
    651,680.53x = 898,999.54 × 565,518.58
  4. Step 4: Simplify right side
    651,680.53x = 508,400,943,281.45
  5. Step 5: Solve for x
    x = 508,400,943,281.45/651,680.53
  6. Step 6: Final answer
    x = 780,138.30

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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.