Home / 931,880.04-1,286,100.32-518,457.71

Finding the Fourth Proportional to 931,880.04, 1,286,100.32 and 518,457.71

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Solution

The fourth proportional to 931,880.04, 1,286,100.32 and 518,457.71 is: 715,530.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    931,880.04 : 1,286,100.32 = 518,457.71 : x
  2. Step 2: Convert to fraction form
    931,880.04/1,286,100.32 = 518,457.71/x
  3. Step 3: Cross multiply
    931,880.04x = 1,286,100.32 × 518,457.71
  4. Step 4: Simplify right side
    931,880.04x = 666,788,617,714.68
  5. Step 5: Solve for x
    x = 666,788,617,714.68/931,880.04
  6. Step 6: Final answer
    x = 715,530.53

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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.