Home / 761,513.65-1,050,283.49-647,170.79

Finding the Fourth Proportional to 761,513.65, 1,050,283.49 and 647,170.79

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Solution

The fourth proportional to 761,513.65, 1,050,283.49 and 647,170.79 is: 892,581.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    761,513.65 : 1,050,283.49 = 647,170.79 : x
  2. Step 2: Convert to fraction form
    761,513.65/1,050,283.49 = 647,170.79/x
  3. Step 3: Cross multiply
    761,513.65x = 1,050,283.49 × 647,170.79
  4. Step 4: Simplify right side
    761,513.65x = 679,712,796,738.34
  5. Step 5: Solve for x
    x = 679,712,796,738.34/761,513.65
  6. Step 6: Final answer
    x = 892,581.24

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Double scale
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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.