Home / 691,758.19-1,030,760.21-616,298.50

Finding the Fourth Proportional to 691,758.19, 1,030,760.21 and 616,298.50

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Solution

The fourth proportional to 691,758.19, 1,030,760.21 and 616,298.50 is: 918,320.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    691,758.19 : 1,030,760.21 = 616,298.50 : x
  2. Step 2: Convert to fraction form
    691,758.19/1,030,760.21 = 616,298.50/x
  3. Step 3: Cross multiply
    691,758.19x = 1,030,760.21 × 616,298.50
  4. Step 4: Simplify right side
    691,758.19x = 635,255,971,282.69
  5. Step 5: Solve for x
    x = 635,255,971,282.69/691,758.19
  6. Step 6: Final answer
    x = 918,320.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.