Home / 827,822.10-1,238,780.70-573,911.40

Finding the Fourth Proportional to 827,822.10, 1,238,780.70 and 573,911.40

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Solution

The fourth proportional to 827,822.10, 1,238,780.70 and 573,911.40 is: 858,820.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    827,822.10 : 1,238,780.70 = 573,911.40 : x
  2. Step 2: Convert to fraction form
    827,822.10/1,238,780.70 = 573,911.40/x
  3. Step 3: Cross multiply
    827,822.10x = 1,238,780.70 × 573,911.40
  4. Step 4: Simplify right side
    827,822.10x = 710,950,365,829.98
  5. Step 5: Solve for x
    x = 710,950,365,829.98/827,822.10
  6. Step 6: Final answer
    x = 858,820.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.