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Finding the Fourth Proportional to 434,447,672.70, 651,671,509.05 and 250,781,663.10

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Solution

The fourth proportional to 434,447,672.70, 651,671,509.05 and 250,781,663.10 is: 376,172,494.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    434,447,672.70 : 651,671,509.05 = 250,781,663.10 : x
  2. Step 2: Convert to fraction form
    434,447,672.70/651,671,509.05 = 250,781,663.10/x
  3. Step 3: Cross multiply
    434,447,672.70x = 651,671,509.05 × 250,781,663.10
  4. Step 4: Simplify right side
    434,447,672.70x = 163,427,264,834,445,696
  5. Step 5: Solve for x
    x = 163,427,264,834,445,696/434,447,672.70
  6. Step 6: Final answer
    x = 376,172,494.65

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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.