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Finding the Fourth Proportional to 706,816.80, 975,384.96 and 384,518.64

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Solution

The fourth proportional to 706,816.80, 975,384.96 and 384,518.64 is: 530,623.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    706,816.80 : 975,384.96 = 384,518.64 : x
  2. Step 2: Convert to fraction form
    706,816.80/975,384.96 = 384,518.64/x
  3. Step 3: Cross multiply
    706,816.80x = 975,384.96 × 384,518.64
  4. Step 4: Simplify right side
    706,816.80x = 375,053,698,295.65
  5. Step 5: Solve for x
    x = 375,053,698,295.65/706,816.80
  6. Step 6: Final answer
    x = 530,623.63

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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.