Home / 898,984.82-1,240,636.76-517,011.91

Finding the Fourth Proportional to 898,984.82, 1,240,636.76 and 517,011.91

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Solution

The fourth proportional to 898,984.82, 1,240,636.76 and 517,011.91 is: 713,498.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    898,984.82 : 1,240,636.76 = 517,011.91 : x
  2. Step 2: Convert to fraction form
    898,984.82/1,240,636.76 = 517,011.91/x
  3. Step 3: Cross multiply
    898,984.82x = 1,240,636.76 × 517,011.91
  4. Step 4: Simplify right side
    898,984.82x = 641,423,977,155.96
  5. Step 5: Solve for x
    x = 641,423,977,155.96/898,984.82
  6. Step 6: Final answer
    x = 713,498.12

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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.