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Finding the Fourth Proportional to 851,208,332, 1,276,866,440.34 and 359,830,022.72

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Solution

The fourth proportional to 851,208,332, 1,276,866,440.34 and 359,830,022.72 is: 539,767,837.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    851,208,332 : 1,276,866,440.34 = 359,830,022.72 : x
  2. Step 2: Convert to fraction form
    851,208,332/1,276,866,440.34 = 359,830,022.72/x
  3. Step 3: Cross multiply
    851,208,332x = 1,276,866,440.34 × 359,830,022.72
  4. Step 4: Simplify right side
    851,208,332x = 459,454,880,237,947,712
  5. Step 5: Solve for x
    x = 459,454,880,237,947,712/851,208,332
  6. Step 6: Final answer
    x = 539,767,837.04

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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.