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Finding the Fourth Proportional to 692,772,465.15, 956,018,392.40 and 375,224,816.39

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Solution

The fourth proportional to 692,772,465.15, 956,018,392.40 and 375,224,816.39 is: 517,806,125.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    692,772,465.15 : 956,018,392.40 = 375,224,816.39 : x
  2. Step 2: Convert to fraction form
    692,772,465.15/956,018,392.40 = 375,224,816.39/x
  3. Step 3: Cross multiply
    692,772,465.15x = 956,018,392.40 × 375,224,816.39
  4. Step 4: Simplify right side
    692,772,465.15x = 358,721,825,749,910,976
  5. Step 5: Solve for x
    x = 358,721,825,749,910,976/692,772,465.15
  6. Step 6: Final answer
    x = 517,806,125.09

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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.