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Finding the Fourth Proportional to 698,903.62, 964,255.02 and 569,619.78

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Solution

The fourth proportional to 698,903.62, 964,255.02 and 569,619.78 is: 785,886.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    698,903.62 : 964,255.02 = 569,619.78 : x
  2. Step 2: Convert to fraction form
    698,903.62/964,255.02 = 569,619.78/x
  3. Step 3: Cross multiply
    698,903.62x = 964,255.02 × 569,619.78
  4. Step 4: Simplify right side
    698,903.62x = 549,258,732,356.30
  5. Step 5: Solve for x
    x = 549,258,732,356.30/698,903.62
  6. Step 6: Final answer
    x = 785,886.23

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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.