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Finding the Fourth Proportional to 620,598.30, 930,897.45 and 221,252.10

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Solution

The fourth proportional to 620,598.30, 930,897.45 and 221,252.10 is: 331,878.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    620,598.30 : 930,897.45 = 221,252.10 : x
  2. Step 2: Convert to fraction form
    620,598.30/930,897.45 = 221,252.10/x
  3. Step 3: Cross multiply
    620,598.30x = 930,897.45 × 221,252.10
  4. Step 4: Simplify right side
    620,598.30x = 205,963,015,697.15
  5. Step 5: Solve for x
    x = 205,963,015,697.15/620,598.30
  6. Step 6: Final answer
    x = 331,878.15

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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.