Home / 651,688.71-899,073.84-406,530.80

Finding the Fourth Proportional to 651,688.71, 899,073.84 and 406,530.80

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Solution

The fourth proportional to 651,688.71, 899,073.84 and 406,530.80 is: 560,852.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    651,688.71 : 899,073.84 = 406,530.80 : x
  2. Step 2: Convert to fraction form
    651,688.71/899,073.84 = 406,530.80/x
  3. Step 3: Cross multiply
    651,688.71x = 899,073.84 × 406,530.80
  4. Step 4: Simplify right side
    651,688.71x = 365,501,202,938.90
  5. Step 5: Solve for x
    x = 365,501,202,938.90/651,688.71
  6. Step 6: Final answer
    x = 560,852.44

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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.