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Finding the Fourth Proportional to 559,424.38, 772,006.66 and 317,706.92

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Solution

The fourth proportional to 559,424.38, 772,006.66 and 317,706.92 is: 438,436.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,424.38 : 772,006.66 = 317,706.92 : x
  2. Step 2: Convert to fraction form
    559,424.38/772,006.66 = 317,706.92/x
  3. Step 3: Cross multiply
    559,424.38x = 772,006.66 × 317,706.92
  4. Step 4: Simplify right side
    559,424.38x = 245,271,858,168.09
  5. Step 5: Solve for x
    x = 245,271,858,168.09/559,424.38
  6. Step 6: Final answer
    x = 438,436.13

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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.