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Finding the Fourth Proportional to 622,800.04, 859,603.92 and 407,815.24

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Solution

The fourth proportional to 622,800.04, 859,603.92 and 407,815.24 is: 562,876.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    622,800.04 : 859,603.92 = 407,815.24 : x
  2. Step 2: Convert to fraction form
    622,800.04/859,603.92 = 407,815.24/x
  3. Step 3: Cross multiply
    622,800.04x = 859,603.92 × 407,815.24
  4. Step 4: Simplify right side
    622,800.04x = 350,559,578,939.74
  5. Step 5: Solve for x
    x = 350,559,578,939.74/622,800.04
  6. Step 6: Final answer
    x = 562,876.62

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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.