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Finding the Fourth Proportional to 697,029.12, 962,442 and 535,629.60

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Solution

The fourth proportional to 697,029.12, 962,442 and 535,629.60 is: 739,585.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    697,029.12 : 962,442 = 535,629.60 : x
  2. Step 2: Convert to fraction form
    697,029.12/962,442 = 535,629.60/x
  3. Step 3: Cross multiply
    697,029.12x = 962,442 × 535,629.60
  4. Step 4: Simplify right side
    697,029.12x = 515,512,423,483.20
  5. Step 5: Solve for x
    x = 515,512,423,483.20/697,029.12
  6. Step 6: Final answer
    x = 739,585.20

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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.