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Finding the Fourth Proportional to 555,468.60, 766,547.10 and 313,751.64

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Solution

The fourth proportional to 555,468.60, 766,547.10 and 313,751.64 is: 432,977.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,468.60 : 766,547.10 = 313,751.64 : x
  2. Step 2: Convert to fraction form
    555,468.60/766,547.10 = 313,751.64/x
  3. Step 3: Cross multiply
    555,468.60x = 766,547.10 × 313,751.64
  4. Step 4: Simplify right side
    555,468.60x = 240,505,409,762.24
  5. Step 5: Solve for x
    x = 240,505,409,762.24/555,468.60
  6. Step 6: Final answer
    x = 432,977.51

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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.