Home / 861,367.49-1,188,666.91-479,386.07

Finding the Fourth Proportional to 861,367.49, 1,188,666.91 and 479,386.07

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Solution

The fourth proportional to 861,367.49, 1,188,666.91 and 479,386.07 is: 661,541.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    861,367.49 : 1,188,666.91 = 479,386.07 : x
  2. Step 2: Convert to fraction form
    861,367.49/1,188,666.91 = 479,386.07/x
  3. Step 3: Cross multiply
    861,367.49x = 1,188,666.91 × 479,386.07
  4. Step 4: Simplify right side
    861,367.49x = 569,830,357,637.34
  5. Step 5: Solve for x
    x = 569,830,357,637.34/861,367.49
  6. Step 6: Final answer
    x = 661,541.52

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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.