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Finding the Fourth Proportional to 612,488.61, 845,176.55 and 567,348.93

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Solution

The fourth proportional to 612,488.61, 845,176.55 and 567,348.93 is: 782,888.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,488.61 : 845,176.55 = 567,348.93 : x
  2. Step 2: Convert to fraction form
    612,488.61/845,176.55 = 567,348.93/x
  3. Step 3: Cross multiply
    612,488.61x = 845,176.55 × 567,348.93
  4. Step 4: Simplify right side
    612,488.61x = 479,510,008,466.85
  5. Step 5: Solve for x
    x = 479,510,008,466.85/612,488.61
  6. Step 6: Final answer
    x = 782,888.04

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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.