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Finding the Fourth Proportional to 346,567.62, 518,668.62 and 290,471.07

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Solution

The fourth proportional to 346,567.62, 518,668.62 and 290,471.07 is: 434,715.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,567.62 : 518,668.62 = 290,471.07 : x
  2. Step 2: Convert to fraction form
    346,567.62/518,668.62 = 290,471.07/x
  3. Step 3: Cross multiply
    346,567.62x = 518,668.62 × 290,471.07
  4. Step 4: Simplify right side
    346,567.62x = 150,658,227,081.82
  5. Step 5: Solve for x
    x = 150,658,227,081.82/346,567.62
  6. Step 6: Final answer
    x = 434,715.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.