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Finding the Fourth Proportional to 692,790.54, 956,000.43 and 402,269.34

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Solution

The fourth proportional to 692,790.54, 956,000.43 and 402,269.34 is: 555,102.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    692,790.54 : 956,000.43 = 402,269.34 : x
  2. Step 2: Convert to fraction form
    692,790.54/956,000.43 = 402,269.34/x
  3. Step 3: Cross multiply
    692,790.54x = 956,000.43 × 402,269.34
  4. Step 4: Simplify right side
    692,790.54x = 384,569,662,015.82
  5. Step 5: Solve for x
    x = 384,569,662,015.82/692,790.54
  6. Step 6: Final answer
    x = 555,102.36

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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.