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Finding the Fourth Proportional to 618,423,109.90, 927,634,664.85 and 618,423,109.90

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Solution

The fourth proportional to 618,423,109.90, 927,634,664.85 and 618,423,109.90 is: 927,634,664.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    618,423,109.90 : 927,634,664.85 = 618,423,109.90 : x
  2. Step 2: Convert to fraction form
    618,423,109.90/927,634,664.85 = 618,423,109.90/x
  3. Step 3: Cross multiply
    618,423,109.90x = 927,634,664.85 × 618,423,109.90
  4. Step 4: Simplify right side
    618,423,109.90x = 573,670,714,287,581,184
  5. Step 5: Solve for x
    x = 573,670,714,287,581,184/618,423,109.90
  6. Step 6: Final answer
    x = 927,634,664.85

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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.