Home / 622,228.57-857,742.41-507,330.88

Finding the Fourth Proportional to 622,228.57, 857,742.41 and 507,330.88

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Solution

The fourth proportional to 622,228.57, 857,742.41 and 507,330.88 is: 699,355.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    622,228.57 : 857,742.41 = 507,330.88 : x
  2. Step 2: Convert to fraction form
    622,228.57/857,742.41 = 507,330.88/x
  3. Step 3: Cross multiply
    622,228.57x = 857,742.41 × 507,330.88
  4. Step 4: Simplify right side
    622,228.57x = 435,159,210,802.59
  5. Step 5: Solve for x
    x = 435,159,210,802.59/622,228.57
  6. Step 6: Final answer
    x = 699,355.89

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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.