Home / 696,965.52-961,458.20-455,389.50

Finding the Fourth Proportional to 696,965.52, 961,458.20 and 455,389.50

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Solution

The fourth proportional to 696,965.52, 961,458.20 and 455,389.50 is: 628,206.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    696,965.52 : 961,458.20 = 455,389.50 : x
  2. Step 2: Convert to fraction form
    696,965.52/961,458.20 = 455,389.50/x
  3. Step 3: Cross multiply
    696,965.52x = 961,458.20 × 455,389.50
  4. Step 4: Simplify right side
    696,965.52x = 437,837,968,968.90
  5. Step 5: Solve for x
    x = 437,837,968,968.90/696,965.52
  6. Step 6: Final answer
    x = 628,206.07

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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.