Home / 819,141.49-1,130,420.51-456,588.33

Finding the Fourth Proportional to 819,141.49, 1,130,420.51 and 456,588.33

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Solution

The fourth proportional to 819,141.49, 1,130,420.51 and 456,588.33 is: 630,094.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    819,141.49 : 1,130,420.51 = 456,588.33 : x
  2. Step 2: Convert to fraction form
    819,141.49/1,130,420.51 = 456,588.33/x
  3. Step 3: Cross multiply
    819,141.49x = 1,130,420.51 × 456,588.33
  4. Step 4: Simplify right side
    819,141.49x = 516,136,812,858.65
  5. Step 5: Solve for x
    x = 516,136,812,858.65/819,141.49
  6. Step 6: Final answer
    x = 630,094.82

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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.