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Finding the Fourth Proportional to 425,039.81, 586,492.65 and 243,759.38

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Solution

The fourth proportional to 425,039.81, 586,492.65 and 243,759.38 is: 336,352.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,039.81 : 586,492.65 = 243,759.38 : x
  2. Step 2: Convert to fraction form
    425,039.81/586,492.65 = 243,759.38/x
  3. Step 3: Cross multiply
    425,039.81x = 586,492.65 × 243,759.38
  4. Step 4: Simplify right side
    425,039.81x = 142,963,081,806.09
  5. Step 5: Solve for x
    x = 142,963,081,806.09/425,039.81
  6. Step 6: Final answer
    x = 336,352.22

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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.