Home / 861,314.49-1,188,602.40-479,341.17

Finding the Fourth Proportional to 861,314.49, 1,188,602.40 and 479,341.17

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Solution

The fourth proportional to 861,314.49, 1,188,602.40 and 479,341.17 is: 661,484.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    861,314.49 : 1,188,602.40 = 479,341.17 : x
  2. Step 2: Convert to fraction form
    861,314.49/1,188,602.40 = 479,341.17/x
  3. Step 3: Cross multiply
    861,314.49x = 1,188,602.40 × 479,341.17
  4. Step 4: Simplify right side
    861,314.49x = 569,746,065,080.81
  5. Step 5: Solve for x
    x = 569,746,065,080.81/861,314.49
  6. Step 6: Final answer
    x = 661,484.36

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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.