Home / 857,809.40-1,183,918.94-475,959.20

Finding the Fourth Proportional to 857,809.40, 1,183,918.94 and 475,959.20

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Solution

The fourth proportional to 857,809.40, 1,183,918.94 and 475,959.20 is: 656,902.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    857,809.40 : 1,183,918.94 = 475,959.20 : x
  2. Step 2: Convert to fraction form
    857,809.40/1,183,918.94 = 475,959.20/x
  3. Step 3: Cross multiply
    857,809.40x = 1,183,918.94 × 475,959.20
  4. Step 4: Simplify right side
    857,809.40x = 563,497,111,547.25
  5. Step 5: Solve for x
    x = 563,497,111,547.25/857,809.40
  6. Step 6: Final answer
    x = 656,902.47

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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.