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Finding the Fourth Proportional to 968,704.60, 1,452,400.80 and 495,000.40

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Solution

The fourth proportional to 968,704.60, 1,452,400.80 and 495,000.40 is: 742,165.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    968,704.60 : 1,452,400.80 = 495,000.40 : x
  2. Step 2: Convert to fraction form
    968,704.60/1,452,400.80 = 495,000.40/x
  3. Step 3: Cross multiply
    968,704.60x = 1,452,400.80 × 495,000.40
  4. Step 4: Simplify right side
    968,704.60x = 718,938,976,960.32
  5. Step 5: Solve for x
    x = 718,938,976,960.32/968,704.60
  6. Step 6: Final answer
    x = 742,165.34

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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.