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Finding the Fourth Proportional to 983,957,307.28, 1,476,957,199.20 and 570,242,446

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Solution

The fourth proportional to 983,957,307.28, 1,476,957,199.20 and 570,242,446 is: 855,955,517.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    983,957,307.28 : 1,476,957,199.20 = 570,242,446 : x
  2. Step 2: Convert to fraction form
    983,957,307.28/1,476,957,199.20 = 570,242,446/x
  3. Step 3: Cross multiply
    983,957,307.28x = 1,476,957,199.20 × 570,242,446
  4. Step 4: Simplify right side
    983,957,307.28x = 842,223,685,909,117,312
  5. Step 5: Solve for x
    x = 842,223,685,909,117,312/983,957,307.28
  6. Step 6: Final answer
    x = 855,955,517.25

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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.