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Finding the Fourth Proportional to 613,026,752.80, 919,540,129.20 and 546,513,959.20

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Solution

The fourth proportional to 613,026,752.80, 919,540,129.20 and 546,513,959.20 is: 819,770,938.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    613,026,752.80 : 919,540,129.20 = 546,513,959.20 : x
  2. Step 2: Convert to fraction form
    613,026,752.80/919,540,129.20 = 546,513,959.20/x
  3. Step 3: Cross multiply
    613,026,752.80x = 919,540,129.20 × 546,513,959.20
  4. Step 4: Simplify right side
    613,026,752.80x = 502,541,516,652,371,584
  5. Step 5: Solve for x
    x = 502,541,516,652,371,584/613,026,752.80
  6. Step 6: Final answer
    x = 819,770,938.80

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1.5x scale

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.