Home / 919,860.50-1,269,426.93-517,452.50

Finding the Fourth Proportional to 919,860.50, 1,269,426.93 and 517,452.50

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Solution

The fourth proportional to 919,860.50, 1,269,426.93 and 517,452.50 is: 714,095.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    919,860.50 : 1,269,426.93 = 517,452.50 : x
  2. Step 2: Convert to fraction form
    919,860.50/1,269,426.93 = 517,452.50/x
  3. Step 3: Cross multiply
    919,860.50x = 1,269,426.93 × 517,452.50
  4. Step 4: Simplify right side
    919,860.50x = 656,868,138,495.83
  5. Step 5: Solve for x
    x = 656,868,138,495.83/919,860.50
  6. Step 6: Final answer
    x = 714,095.39

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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.