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Finding the Fourth Proportional to 911,702.53, 1,258,225.25 and 503,884.00

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Solution

The fourth proportional to 911,702.53, 1,258,225.25 and 503,884.00 is: 695,401.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    911,702.53 : 1,258,225.25 = 503,884.00 : x
  2. Step 2: Convert to fraction form
    911,702.53/1,258,225.25 = 503,884.00/x
  3. Step 3: Cross multiply
    911,702.53x = 1,258,225.25 × 503,884.00
  4. Step 4: Simplify right side
    911,702.53x = 633,999,566,206.02
  5. Step 5: Solve for x
    x = 633,999,566,206.02/911,702.53
  6. Step 6: Final answer
    x = 695,401.79

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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.