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Finding the Fourth Proportional to 585,055.50, 807,376.62 and 316,783.50

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Solution

The fourth proportional to 585,055.50, 807,376.62 and 316,783.50 is: 437,161.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    585,055.50 : 807,376.62 = 316,783.50 : x
  2. Step 2: Convert to fraction form
    585,055.50/807,376.62 = 316,783.50/x
  3. Step 3: Cross multiply
    585,055.50x = 807,376.62 × 316,783.50
  4. Step 4: Simplify right side
    585,055.50x = 255,763,591,501.77
  5. Step 5: Solve for x
    x = 255,763,591,501.77/585,055.50
  6. Step 6: Final answer
    x = 437,161.25

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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.