Home / 857,539.13-1,183,405.71-470,357.70

Finding the Fourth Proportional to 857,539.13, 1,183,405.71 and 470,357.70

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Solution

The fourth proportional to 857,539.13, 1,183,405.71 and 470,357.70 is: 649,094.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    857,539.13 : 1,183,405.71 = 470,357.70 : x
  2. Step 2: Convert to fraction form
    857,539.13/1,183,405.71 = 470,357.70/x
  3. Step 3: Cross multiply
    857,539.13x = 1,183,405.71 × 470,357.70
  4. Step 4: Simplify right side
    857,539.13x = 556,623,987,922.47
  5. Step 5: Solve for x
    x = 556,623,987,922.47/857,539.13
  6. Step 6: Final answer
    x = 649,094.57

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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.