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Finding the Fourth Proportional to 556,595.72, 767,627.96 and 427,845.84

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Solution

The fourth proportional to 556,595.72, 767,627.96 and 427,845.84 is: 590,062.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,595.72 : 767,627.96 = 427,845.84 : x
  2. Step 2: Convert to fraction form
    556,595.72/767,627.96 = 427,845.84/x
  3. Step 3: Cross multiply
    556,595.72x = 767,627.96 × 427,845.84
  4. Step 4: Simplify right side
    556,595.72x = 328,426,429,353.69
  5. Step 5: Solve for x
    x = 328,426,429,353.69/556,595.72
  6. Step 6: Final answer
    x = 590,062.80

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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.