Home / 714,200.03-985,595.46-391,930.40

Finding the Fourth Proportional to 714,200.03, 985,595.46 and 391,930.40

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Solution

The fourth proportional to 714,200.03, 985,595.46 and 391,930.40 is: 540,863.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    714,200.03 : 985,595.46 = 391,930.40 : x
  2. Step 2: Convert to fraction form
    714,200.03/985,595.46 = 391,930.40/x
  3. Step 3: Cross multiply
    714,200.03x = 985,595.46 × 391,930.40
  4. Step 4: Simplify right side
    714,200.03x = 386,284,822,875.98
  5. Step 5: Solve for x
    x = 386,284,822,875.98/714,200.03
  6. Step 6: Final answer
    x = 540,863.63

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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.