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Finding the Fourth Proportional to 661,677.95, 988,035.04 and 525,210.97

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Solution

The fourth proportional to 661,677.95, 988,035.04 and 525,210.97 is: 784,258.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    661,677.95 : 988,035.04 = 525,210.97 : x
  2. Step 2: Convert to fraction form
    661,677.95/988,035.04 = 525,210.97/x
  3. Step 3: Cross multiply
    661,677.95x = 988,035.04 × 525,210.97
  4. Step 4: Simplify right side
    661,677.95x = 518,926,841,752.39
  5. Step 5: Solve for x
    x = 518,926,841,752.39/661,677.95
  6. Step 6: Final answer
    x = 784,258.93

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.