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Finding the Fourth Proportional to 610,561,973.20, 915,842,959.80 and 365,673,960.40

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Solution

The fourth proportional to 610,561,973.20, 915,842,959.80 and 365,673,960.40 is: 548,510,940.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    610,561,973.20 : 915,842,959.80 = 365,673,960.40 : x
  2. Step 2: Convert to fraction form
    610,561,973.20/915,842,959.80 = 365,673,960.40/x
  3. Step 3: Cross multiply
    610,561,973.20x = 915,842,959.80 × 365,673,960.40
  4. Step 4: Simplify right side
    610,561,973.20x = 334,899,922,214,523,968
  5. Step 5: Solve for x
    x = 334,899,922,214,523,968/610,561,973.20
  6. Step 6: Final answer
    x = 548,510,940.60

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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.