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Finding the Fourth Proportional to 473,386.72, 708,728.40 and 360,936.16

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Solution

The fourth proportional to 473,386.72, 708,728.40 and 360,936.16 is: 540,373.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    473,386.72 : 708,728.40 = 360,936.16 : x
  2. Step 2: Convert to fraction form
    473,386.72/708,728.40 = 360,936.16/x
  3. Step 3: Cross multiply
    473,386.72x = 708,728.40 × 360,936.16
  4. Step 4: Simplify right side
    473,386.72x = 255,805,707,178.94
  5. Step 5: Solve for x
    x = 255,805,707,178.94/473,386.72
  6. Step 6: Final answer
    x = 540,373.64

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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.