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Finding the Fourth Proportional to 626,603,275.36, 864,735,856.68 and 375,748,508.71

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Solution

The fourth proportional to 626,603,275.36, 864,735,856.68 and 375,748,508.71 is: 518,546,936.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,603,275.36 : 864,735,856.68 = 375,748,508.71 : x
  2. Step 2: Convert to fraction form
    626,603,275.36/864,735,856.68 = 375,748,508.71/x
  3. Step 3: Cross multiply
    626,603,275.36x = 864,735,856.68 × 375,748,508.71
  4. Step 4: Simplify right side
    626,603,275.36x = 324,923,208,575,574,272
  5. Step 5: Solve for x
    x = 324,923,208,575,574,272/626,603,275.36
  6. Step 6: Final answer
    x = 518,546,936.08

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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.