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Finding the Fourth Proportional to 551,578.56, 761,268.76 and 459,551.96

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Solution

The fourth proportional to 551,578.56, 761,268.76 and 459,551.96 is: 634,256.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,578.56 : 761,268.76 = 459,551.96 : x
  2. Step 2: Convert to fraction form
    551,578.56/761,268.76 = 459,551.96/x
  3. Step 3: Cross multiply
    551,578.56x = 761,268.76 × 459,551.96
  4. Step 4: Simplify right side
    551,578.56x = 349,842,550,744.77
  5. Step 5: Solve for x
    x = 349,842,550,744.77/551,578.56
  6. Step 6: Final answer
    x = 634,256.98

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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.