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Finding the Fourth Proportional to 540,463.47, 745,813.81 and 295,460.87

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Solution

The fourth proportional to 540,463.47, 745,813.81 and 295,460.87 is: 407,721.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,463.47 : 745,813.81 = 295,460.87 : x
  2. Step 2: Convert to fraction form
    540,463.47/745,813.81 = 295,460.87/x
  3. Step 3: Cross multiply
    540,463.47x = 745,813.81 × 295,460.87
  4. Step 4: Simplify right side
    540,463.47x = 220,358,797,160.62
  5. Step 5: Solve for x
    x = 220,358,797,160.62/540,463.47
  6. Step 6: Final answer
    x = 407,721.91

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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.