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Finding the Fourth Proportional to 556,434.60, 767,042.52 and 435,365.66

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Solution

The fourth proportional to 556,434.60, 767,042.52 and 435,365.66 is: 600,149.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,434.60 : 767,042.52 = 435,365.66 : x
  2. Step 2: Convert to fraction form
    556,434.60/767,042.52 = 435,365.66/x
  3. Step 3: Cross multiply
    556,434.60x = 767,042.52 × 435,365.66
  4. Step 4: Simplify right side
    556,434.60x = 333,943,972,967.86
  5. Step 5: Solve for x
    x = 333,943,972,967.86/556,434.60
  6. Step 6: Final answer
    x = 600,149.55

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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.