Home / 920,864.45-1,270,624.30-512,956.14

Finding the Fourth Proportional to 920,864.45, 1,270,624.30 and 512,956.14

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Solution

The fourth proportional to 920,864.45, 1,270,624.30 and 512,956.14 is: 707,785.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    920,864.45 : 1,270,624.30 = 512,956.14 : x
  2. Step 2: Convert to fraction form
    920,864.45/1,270,624.30 = 512,956.14/x
  3. Step 3: Cross multiply
    920,864.45x = 1,270,624.30 × 512,956.14
  4. Step 4: Simplify right side
    920,864.45x = 651,774,535,035.81
  5. Step 5: Solve for x
    x = 651,774,535,035.81/920,864.45
  6. Step 6: Final answer
    x = 707,785.54

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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.