Home / 705,725.40-973,869.30-399,795.52

Finding the Fourth Proportional to 705,725.40, 973,869.30 and 399,795.52

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Solution

The fourth proportional to 705,725.40, 973,869.30 and 399,795.52 is: 551,699.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    705,725.40 : 973,869.30 = 399,795.52 : x
  2. Step 2: Convert to fraction form
    705,725.40/973,869.30 = 399,795.52/x
  3. Step 3: Cross multiply
    705,725.40x = 973,869.30 × 399,795.52
  4. Step 4: Simplify right side
    705,725.40x = 389,348,583,205.54
  5. Step 5: Solve for x
    x = 389,348,583,205.54/705,725.40
  6. Step 6: Final answer
    x = 551,699.83

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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.