Home / 698,489.03-963,746.70-407,935.82

Finding the Fourth Proportional to 698,489.03, 963,746.70 and 407,935.82

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Solution

The fourth proportional to 698,489.03, 963,746.70 and 407,935.82 is: 562,853.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    698,489.03 : 963,746.70 = 407,935.82 : x
  2. Step 2: Convert to fraction form
    698,489.03/963,746.70 = 407,935.82/x
  3. Step 3: Cross multiply
    698,489.03x = 963,746.70 × 407,935.82
  4. Step 4: Simplify right side
    698,489.03x = 393,146,800,336.79
  5. Step 5: Solve for x
    x = 393,146,800,336.79/698,489.03
  6. Step 6: Final answer
    x = 562,853.22

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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.