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Finding the Fourth Proportional to 556,472.40, 833,845.34 and 386,026.94

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Solution

The fourth proportional to 556,472.40, 833,845.34 and 386,026.94 is: 578,441.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,472.40 : 833,845.34 = 386,026.94 : x
  2. Step 2: Convert to fraction form
    556,472.40/833,845.34 = 386,026.94/x
  3. Step 3: Cross multiply
    556,472.40x = 833,845.34 × 386,026.94
  4. Step 4: Simplify right side
    556,472.40x = 321,886,758,934.10
  5. Step 5: Solve for x
    x = 321,886,758,934.10/556,472.40
  6. Step 6: Final answer
    x = 578,441.55

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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.