Home / 411,569.10-617,403.06-145,275.12

Finding the Fourth Proportional to 411,569.10, 617,403.06 and 145,275.12

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Solution

The fourth proportional to 411,569.10, 617,403.06 and 145,275.12 is: 217,930.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    411,569.10 : 617,403.06 = 145,275.12 : x
  2. Step 2: Convert to fraction form
    411,569.10/617,403.06 = 145,275.12/x
  3. Step 3: Cross multiply
    411,569.10x = 617,403.06 × 145,275.12
  4. Step 4: Simplify right side
    411,569.10x = 89,693,303,629.87
  5. Step 5: Solve for x
    x = 89,693,303,629.87/411,569.10
  6. Step 6: Final answer
    x = 217,930.12

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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.