Home / 830,586.28-1,146,219.80-491,051.56

Finding the Fourth Proportional to 830,586.28, 1,146,219.80 and 491,051.56

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Solution

The fourth proportional to 830,586.28, 1,146,219.80 and 491,051.56 is: 677,657.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    830,586.28 : 1,146,219.80 = 491,051.56 : x
  2. Step 2: Convert to fraction form
    830,586.28/1,146,219.80 = 491,051.56/x
  3. Step 3: Cross multiply
    830,586.28x = 1,146,219.80 × 491,051.56
  4. Step 4: Simplify right side
    830,586.28x = 562,853,020,892.89
  5. Step 5: Solve for x
    x = 562,853,020,892.89/830,586.28
  6. Step 6: Final answer
    x = 677,657.50

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Double scale
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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.