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Finding the Fourth Proportional to 966,408.32, 1,333,661.55 and 536,728.70

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Solution

The fourth proportional to 966,408.32, 1,333,661.55 and 536,728.70 is: 740,695.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    966,408.32 : 1,333,661.55 = 536,728.70 : x
  2. Step 2: Convert to fraction form
    966,408.32/1,333,661.55 = 536,728.70/x
  3. Step 3: Cross multiply
    966,408.32x = 1,333,661.55 × 536,728.70
  4. Step 4: Simplify right side
    966,408.32x = 715,814,429,971.49
  5. Step 5: Solve for x
    x = 715,814,429,971.49/966,408.32
  6. Step 6: Final answer
    x = 740,695.64

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1.5x scale

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.