Home / 766,206.36-1,057,323.66-439,502.76

Finding the Fourth Proportional to 766,206.36, 1,057,323.66 and 439,502.76

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Solution

The fourth proportional to 766,206.36, 1,057,323.66 and 439,502.76 is: 606,490.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    766,206.36 : 1,057,323.66 = 439,502.76 : x
  2. Step 2: Convert to fraction form
    766,206.36/1,057,323.66 = 439,502.76/x
  3. Step 3: Cross multiply
    766,206.36x = 1,057,323.66 × 439,502.76
  4. Step 4: Simplify right side
    766,206.36x = 464,696,666,783.30
  5. Step 5: Solve for x
    x = 464,696,666,783.30/766,206.36
  6. Step 6: Final answer
    x = 606,490.22

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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.