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Finding the Fourth Proportional to 576,214.42, 795,155.05 and 318,085.82

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Solution

The fourth proportional to 576,214.42, 795,155.05 and 318,085.82 is: 438,946.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,214.42 : 795,155.05 = 318,085.82 : x
  2. Step 2: Convert to fraction form
    576,214.42/795,155.05 = 318,085.82/x
  3. Step 3: Cross multiply
    576,214.42x = 795,155.05 × 318,085.82
  4. Step 4: Simplify right side
    576,214.42x = 252,927,547,075.52
  5. Step 5: Solve for x
    x = 252,927,547,075.52/576,214.42
  6. Step 6: Final answer
    x = 438,946.93

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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.