Home / 557,569.31-769,430.68-328,140.11

Finding the Fourth Proportional to 557,569.31, 769,430.68 and 328,140.11

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Solution

The fourth proportional to 557,569.31, 769,430.68 and 328,140.11 is: 452,824.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,569.31 : 769,430.68 = 328,140.11 : x
  2. Step 2: Convert to fraction form
    557,569.31/769,430.68 = 328,140.11/x
  3. Step 3: Cross multiply
    557,569.31x = 769,430.68 × 328,140.11
  4. Step 4: Simplify right side
    557,569.31x = 252,481,069,075.80
  5. Step 5: Solve for x
    x = 252,481,069,075.80/557,569.31
  6. Step 6: Final answer
    x = 452,824.55

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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.