Home / 527,075.15-727,360.27-285,357.20

Finding the Fourth Proportional to 527,075.15, 727,360.27 and 285,357.20

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Solution

The fourth proportional to 527,075.15, 727,360.27 and 285,357.20 is: 393,791.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,075.15 : 727,360.27 = 285,357.20 : x
  2. Step 2: Convert to fraction form
    527,075.15/727,360.27 = 285,357.20/x
  3. Step 3: Cross multiply
    527,075.15x = 727,360.27 × 285,357.20
  4. Step 4: Simplify right side
    527,075.15x = 207,557,485,688.25
  5. Step 5: Solve for x
    x = 207,557,485,688.25/527,075.15
  6. Step 6: Final answer
    x = 393,791.07

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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.