Home / 385,127.31-531,296.58-249,205.13

Finding the Fourth Proportional to 385,127.31, 531,296.58 and 249,205.13

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Solution

The fourth proportional to 385,127.31, 531,296.58 and 249,205.13 is: 343,787.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,127.31 : 531,296.58 = 249,205.13 : x
  2. Step 2: Convert to fraction form
    385,127.31/531,296.58 = 249,205.13/x
  3. Step 3: Cross multiply
    385,127.31x = 531,296.58 × 249,205.13
  4. Step 4: Simplify right side
    385,127.31x = 132,401,833,557.85
  5. Step 5: Solve for x
    x = 132,401,833,557.85/385,127.31
  6. Step 6: Final answer
    x = 343,787.19

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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.