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Finding the Fourth Proportional to 907,155,467.52, 1,359,627,726 and 470,215,262.40

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Solution

The fourth proportional to 907,155,467.52, 1,359,627,726 and 470,215,262.40 is: 704,749,881.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    907,155,467.52 : 1,359,627,726 = 470,215,262.40 : x
  2. Step 2: Convert to fraction form
    907,155,467.52/1,359,627,726 = 470,215,262.40/x
  3. Step 3: Cross multiply
    907,155,467.52x = 1,359,627,726 × 470,215,262.40
  4. Step 4: Simplify right side
    907,155,467.52x = 639,317,707,947,405,312
  5. Step 5: Solve for x
    x = 639,317,707,947,405,312/907,155,467.52
  6. Step 6: Final answer
    x = 704,749,881.18

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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.