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Finding the Fourth Proportional to 692,761.48, 955,937.86 and 402,316.36

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Solution

The fourth proportional to 692,761.48, 955,937.86 and 402,316.36 is: 555,154.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    692,761.48 : 955,937.86 = 402,316.36 : x
  2. Step 2: Convert to fraction form
    692,761.48/955,937.86 = 402,316.36/x
  3. Step 3: Cross multiply
    692,761.48x = 955,937.86 × 402,316.36
  4. Step 4: Simplify right side
    692,761.48x = 384,589,440,221.39
  5. Step 5: Solve for x
    x = 384,589,440,221.39/692,761.48
  6. Step 6: Final answer
    x = 555,154.19

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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.