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Finding the Fourth Proportional to 640,547.93, 883,925.59 and 350,174.48

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Solution

The fourth proportional to 640,547.93, 883,925.59 and 350,174.48 is: 483,224.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    640,547.93 : 883,925.59 = 350,174.48 : x
  2. Step 2: Convert to fraction form
    640,547.93/883,925.59 = 350,174.48/x
  3. Step 3: Cross multiply
    640,547.93x = 883,925.59 × 350,174.48
  4. Step 4: Simplify right side
    640,547.93x = 309,528,183,836.94
  5. Step 5: Solve for x
    x = 309,528,183,836.94/640,547.93
  6. Step 6: Final answer
    x = 483,224.08

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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.