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Finding the Fourth Proportional to 654,763.01, 903,582.29 and 386,491.01

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Solution

The fourth proportional to 654,763.01, 903,582.29 and 386,491.01 is: 533,363.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    654,763.01 : 903,582.29 = 386,491.01 : x
  2. Step 2: Convert to fraction form
    654,763.01/903,582.29 = 386,491.01/x
  3. Step 3: Cross multiply
    654,763.01x = 903,582.29 × 386,491.01
  4. Step 4: Simplify right side
    654,763.01x = 349,226,429,947.76
  5. Step 5: Solve for x
    x = 349,226,429,947.76/654,763.01
  6. Step 6: Final answer
    x = 533,363.10

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.