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Finding the Fourth Proportional to 570,669.96, 855,421.68 and 371,390.52

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Solution

The fourth proportional to 570,669.96, 855,421.68 and 371,390.52 is: 556,706.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,669.96 : 855,421.68 = 371,390.52 : x
  2. Step 2: Convert to fraction form
    570,669.96/855,421.68 = 371,390.52/x
  3. Step 3: Cross multiply
    570,669.96x = 855,421.68 × 371,390.52
  4. Step 4: Simplify right side
    570,669.96x = 317,695,502,554.47
  5. Step 5: Solve for x
    x = 317,695,502,554.47/570,669.96
  6. Step 6: Final answer
    x = 556,706.20

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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.