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Finding the Fourth Proportional to 556,877.22, 768,490.96 and 302,228.40

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Solution

The fourth proportional to 556,877.22, 768,490.96 and 302,228.40 is: 417,075.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,877.22 : 768,490.96 = 302,228.40 : x
  2. Step 2: Convert to fraction form
    556,877.22/768,490.96 = 302,228.40/x
  3. Step 3: Cross multiply
    556,877.22x = 768,490.96 × 302,228.40
  4. Step 4: Simplify right side
    556,877.22x = 232,259,793,255.26
  5. Step 5: Solve for x
    x = 232,259,793,255.26/556,877.22
  6. Step 6: Final answer
    x = 417,075.41

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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.