Home / 745,700.80-1,028,925.44-439,873.28

Finding the Fourth Proportional to 745,700.80, 1,028,925.44 and 439,873.28

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Solution

The fourth proportional to 745,700.80, 1,028,925.44 and 439,873.28 is: 606,941.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    745,700.80 : 1,028,925.44 = 439,873.28 : x
  2. Step 2: Convert to fraction form
    745,700.80/1,028,925.44 = 439,873.28/x
  3. Step 3: Cross multiply
    745,700.80x = 1,028,925.44 × 439,873.28
  4. Step 4: Simplify right side
    745,700.80x = 452,596,808,168.24
  5. Step 5: Solve for x
    x = 452,596,808,168.24/745,700.80
  6. Step 6: Final answer
    x = 606,941.56

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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.