Home / 949,071.98-1,309,719.20-519,352.16

Finding the Fourth Proportional to 949,071.98, 1,309,719.20 and 519,352.16

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Solution

The fourth proportional to 949,071.98, 1,309,719.20 and 519,352.16 is: 716,705.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    949,071.98 : 1,309,719.20 = 519,352.16 : x
  2. Step 2: Convert to fraction form
    949,071.98/1,309,719.20 = 519,352.16/x
  3. Step 3: Cross multiply
    949,071.98x = 1,309,719.20 × 519,352.16
  4. Step 4: Simplify right side
    949,071.98x = 680,205,495,513.47
  5. Step 5: Solve for x
    x = 680,205,495,513.47/949,071.98
  6. Step 6: Final answer
    x = 716,705.91

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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.