Home / 868,864.77-1,199,021.81-486,899.01

Finding the Fourth Proportional to 868,864.77, 1,199,021.81 and 486,899.01

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Solution

The fourth proportional to 868,864.77, 1,199,021.81 and 486,899.01 is: 671,914.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    868,864.77 : 1,199,021.81 = 486,899.01 : x
  2. Step 2: Convert to fraction form
    868,864.77/1,199,021.81 = 486,899.01/x
  3. Step 3: Cross multiply
    868,864.77x = 1,199,021.81 × 486,899.01
  4. Step 4: Simplify right side
    868,864.77x = 583,802,529,822.91
  5. Step 5: Solve for x
    x = 583,802,529,822.91/868,864.77
  6. Step 6: Final answer
    x = 671,914.15

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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.