Home / 472,392,417.20-708,588,625.80-440,107,376.45

Finding the Fourth Proportional to 472,392,417.20, 708,588,625.80 and 440,107,376.45

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Solution

The fourth proportional to 472,392,417.20, 708,588,625.80 and 440,107,376.45 is: 660,161,064.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,392,417.20 : 708,588,625.80 = 440,107,376.45 : x
  2. Step 2: Convert to fraction form
    472,392,417.20/708,588,625.80 = 440,107,376.45/x
  3. Step 3: Cross multiply
    472,392,417.20x = 708,588,625.80 × 440,107,376.45
  4. Step 4: Simplify right side
    472,392,417.20x = 311,855,081,083,148,736
  5. Step 5: Solve for x
    x = 311,855,081,083,148,736/472,392,417.20
  6. Step 6: Final answer
    x = 660,161,064.68

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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.