Home / 705,459.98-973,545.18-399,528.75

Finding the Fourth Proportional to 705,459.98, 973,545.18 and 399,528.75

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Solution

The fourth proportional to 705,459.98, 973,545.18 and 399,528.75 is: 551,355.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    705,459.98 : 973,545.18 = 399,528.75 : x
  2. Step 2: Convert to fraction form
    705,459.98/973,545.18 = 399,528.75/x
  3. Step 3: Cross multiply
    705,459.98x = 973,545.18 × 399,528.75
  4. Step 4: Simplify right side
    705,459.98x = 388,959,290,986.49
  5. Step 5: Solve for x
    x = 388,959,290,986.49/705,459.98
  6. Step 6: Final answer
    x = 551,355.57

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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.