Home / 919,853.50-1,269,417.27-517,445.50

Finding the Fourth Proportional to 919,853.50, 1,269,417.27 and 517,445.50

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Solution

The fourth proportional to 919,853.50, 1,269,417.27 and 517,445.50 is: 714,085.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    919,853.50 : 1,269,417.27 = 517,445.50 : x
  2. Step 2: Convert to fraction form
    919,853.50/1,269,417.27 = 517,445.50/x
  3. Step 3: Cross multiply
    919,853.50x = 1,269,417.27 × 517,445.50
  4. Step 4: Simplify right side
    919,853.50x = 656,854,253,983.79
  5. Step 5: Solve for x
    x = 656,854,253,983.79/919,853.50
  6. Step 6: Final answer
    x = 714,085.73

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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.