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Finding the Fourth Proportional to 693,509.22, 956,772.40 and 435,235.46

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Solution

The fourth proportional to 693,509.22, 956,772.40 and 435,235.46 is: 600,455.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    693,509.22 : 956,772.40 = 435,235.46 : x
  2. Step 2: Convert to fraction form
    693,509.22/956,772.40 = 435,235.46/x
  3. Step 3: Cross multiply
    693,509.22x = 956,772.40 × 435,235.46
  4. Step 4: Simplify right side
    693,509.22x = 416,421,274,161.32
  5. Step 5: Solve for x
    x = 416,421,274,161.32/693,509.22
  6. Step 6: Final answer
    x = 600,455.28

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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.