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Finding the Fourth Proportional to 570,758.75, 785,852.71 and 484,547.21

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Solution

The fourth proportional to 570,758.75, 785,852.71 and 484,547.21 is: 667,151.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,758.75 : 785,852.71 = 484,547.21 : x
  2. Step 2: Convert to fraction form
    570,758.75/785,852.71 = 484,547.21/x
  3. Step 3: Cross multiply
    570,758.75x = 785,852.71 × 484,547.21
  4. Step 4: Simplify right side
    570,758.75x = 380,782,732,960.81
  5. Step 5: Solve for x
    x = 380,782,732,960.81/570,758.75
  6. Step 6: Final answer
    x = 667,151.82

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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.