Home / 878,880.29-1,212,864.30-516,319.43

Finding the Fourth Proportional to 878,880.29, 1,212,864.30 and 516,319.43

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Solution

The fourth proportional to 878,880.29, 1,212,864.30 and 516,319.43 is: 712,526.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    878,880.29 : 1,212,864.30 = 516,319.43 : x
  2. Step 2: Convert to fraction form
    878,880.29/1,212,864.30 = 516,319.43/x
  3. Step 3: Cross multiply
    878,880.29x = 1,212,864.30 × 516,319.43
  4. Step 4: Simplify right side
    878,880.29x = 626,225,404,043.35
  5. Step 5: Solve for x
    x = 626,225,404,043.35/878,880.29
  6. Step 6: Final answer
    x = 712,526.39

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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.