Home / 818,133.32-1,129,013.22-450,603.40

Finding the Fourth Proportional to 818,133.32, 1,129,013.22 and 450,603.40

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Solution

The fourth proportional to 818,133.32, 1,129,013.22 and 450,603.40 is: 621,826.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    818,133.32 : 1,129,013.22 = 450,603.40 : x
  2. Step 2: Convert to fraction form
    818,133.32/1,129,013.22 = 450,603.40/x
  3. Step 3: Cross multiply
    818,133.32x = 1,129,013.22 × 450,603.40
  4. Step 4: Simplify right side
    818,133.32x = 508,737,193,956.81
  5. Step 5: Solve for x
    x = 508,737,193,956.81/818,133.32
  6. Step 6: Final answer
    x = 621,826.76

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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.