Home / 773,078.48-1,066,533.30-518,511.68

Finding the Fourth Proportional to 773,078.48, 1,066,533.30 and 518,511.68

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Solution

The fourth proportional to 773,078.48, 1,066,533.30 and 518,511.68 is: 715,334.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    773,078.48 : 1,066,533.30 = 518,511.68 : x
  2. Step 2: Convert to fraction form
    773,078.48/1,066,533.30 = 518,511.68/x
  3. Step 3: Cross multiply
    773,078.48x = 1,066,533.30 × 518,511.68
  4. Step 4: Simplify right side
    773,078.48x = 553,009,973,158.94
  5. Step 5: Solve for x
    x = 553,009,973,158.94/773,078.48
  6. Step 6: Final answer
    x = 715,334.84

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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.