Home / 809,153.59-1,116,000.98-518,792.89

Finding the Fourth Proportional to 809,153.59, 1,116,000.98 and 518,792.89

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Solution

The fourth proportional to 809,153.59, 1,116,000.98 and 518,792.89 is: 715,529.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    809,153.59 : 1,116,000.98 = 518,792.89 : x
  2. Step 2: Convert to fraction form
    809,153.59/1,116,000.98 = 518,792.89/x
  3. Step 3: Cross multiply
    809,153.59x = 1,116,000.98 × 518,792.89
  4. Step 4: Simplify right side
    809,153.59x = 578,973,373,657.03
  5. Step 5: Solve for x
    x = 578,973,373,657.03/809,153.59
  6. Step 6: Final answer
    x = 715,529.64

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1.5x scale

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.