Home / 898,984.64-1,240,636.50-517,011.72

Finding the Fourth Proportional to 898,984.64, 1,240,636.50 and 517,011.72

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Solution

The fourth proportional to 898,984.64, 1,240,636.50 and 517,011.72 is: 713,497.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    898,984.64 : 1,240,636.50 = 517,011.72 : x
  2. Step 2: Convert to fraction form
    898,984.64/1,240,636.50 = 517,011.72/x
  3. Step 3: Cross multiply
    898,984.64x = 1,240,636.50 × 517,011.72
  4. Step 4: Simplify right side
    898,984.64x = 641,423,610,759.78
  5. Step 5: Solve for x
    x = 641,423,610,759.78/898,984.64
  6. Step 6: Final answer
    x = 713,497.86

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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.