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Finding the Fourth Proportional to 692,203.20, 1,038,304.80 and 692,203.20

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Solution

The fourth proportional to 692,203.20, 1,038,304.80 and 692,203.20 is: 1,038,304.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    692,203.20 : 1,038,304.80 = 692,203.20 : x
  2. Step 2: Convert to fraction form
    692,203.20/1,038,304.80 = 692,203.20/x
  3. Step 3: Cross multiply
    692,203.20x = 1,038,304.80 × 692,203.20
  4. Step 4: Simplify right side
    692,203.20x = 718,717,905,135.36
  5. Step 5: Solve for x
    x = 718,717,905,135.36/692,203.20
  6. Step 6: Final answer
    x = 1,038,304.80

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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.