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Finding the Fourth Proportional to 525,087.30, 787,630.95 and 314,616.90

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Solution

The fourth proportional to 525,087.30, 787,630.95 and 314,616.90 is: 471,925.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,087.30 : 787,630.95 = 314,616.90 : x
  2. Step 2: Convert to fraction form
    525,087.30/787,630.95 = 314,616.90/x
  3. Step 3: Cross multiply
    525,087.30x = 787,630.95 × 314,616.90
  4. Step 4: Simplify right side
    525,087.30x = 247,802,007,833.06
  5. Step 5: Solve for x
    x = 247,802,007,833.06/525,087.30
  6. Step 6: Final answer
    x = 471,925.35

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.