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Finding the Fourth Proportional to 698,358.60, 963,708.98 and 426,881.16

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Solution

The fourth proportional to 698,358.60, 963,708.98 and 426,881.16 is: 589,080.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    698,358.60 : 963,708.98 = 426,881.16 : x
  2. Step 2: Convert to fraction form
    698,358.60/963,708.98 = 426,881.16/x
  3. Step 3: Cross multiply
    698,358.60x = 963,708.98 × 426,881.16
  4. Step 4: Simplify right side
    698,358.60x = 411,389,207,284.82
  5. Step 5: Solve for x
    x = 411,389,207,284.82/698,358.60
  6. Step 6: Final answer
    x = 589,080.18

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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.