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Finding the Fourth Proportional to 964,834,573.76, 1,447,203,964.80 and 309,817,666.88

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Solution

The fourth proportional to 964,834,573.76, 1,447,203,964.80 and 309,817,666.88 is: 464,711,120.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    964,834,573.76 : 1,447,203,964.80 = 309,817,666.88 : x
  2. Step 2: Convert to fraction form
    964,834,573.76/1,447,203,964.80 = 309,817,666.88/x
  3. Step 3: Cross multiply
    964,834,573.76x = 1,447,203,964.80 × 309,817,666.88
  4. Step 4: Simplify right side
    964,834,573.76x = 448,369,355,873,821,632
  5. Step 5: Solve for x
    x = 448,369,355,873,821,632/964,834,573.76
  6. Step 6: Final answer
    x = 464,711,120.50

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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.