Home / 714,217-985,619.34-408,300.04

Finding the Fourth Proportional to 714,217, 985,619.34 and 408,300.04

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Solution

The fourth proportional to 714,217, 985,619.34 and 408,300.04 is: 563,453.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    714,217 : 985,619.34 = 408,300.04 : x
  2. Step 2: Convert to fraction form
    714,217/985,619.34 = 408,300.04/x
  3. Step 3: Cross multiply
    714,217x = 985,619.34 × 408,300.04
  4. Step 4: Simplify right side
    714,217x = 402,428,415,946.77
  5. Step 5: Solve for x
    x = 402,428,415,946.77/714,217
  6. Step 6: Final answer
    x = 563,453.99

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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.