Home / 603,688,905.35-832,528,626.94-391,769,141.18

Finding the Fourth Proportional to 603,688,905.35, 832,528,626.94 and 391,769,141.18

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Solution

The fourth proportional to 603,688,905.35, 832,528,626.94 and 391,769,141.18 is: 540,276,659.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    603,688,905.35 : 832,528,626.94 = 391,769,141.18 : x
  2. Step 2: Convert to fraction form
    603,688,905.35/832,528,626.94 = 391,769,141.18/x
  3. Step 3: Cross multiply
    603,688,905.35x = 832,528,626.94 × 391,769,141.18
  4. Step 4: Simplify right side
    603,688,905.35x = 326,159,025,183,977,472
  5. Step 5: Solve for x
    x = 326,159,025,183,977,472/603,688,905.35
  6. Step 6: Final answer
    x = 540,276,659.54

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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.