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Finding the Fourth Proportional to 535,095.15, 738,461.47 and 317,432.69

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Solution

The fourth proportional to 535,095.15, 738,461.47 and 317,432.69 is: 438,075.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    535,095.15 : 738,461.47 = 317,432.69 : x
  2. Step 2: Convert to fraction form
    535,095.15/738,461.47 = 317,432.69/x
  3. Step 3: Cross multiply
    535,095.15x = 738,461.47 × 317,432.69
  4. Step 4: Simplify right side
    535,095.15x = 234,411,810,883.45
  5. Step 5: Solve for x
    x = 234,411,810,883.45/535,095.15
  6. Step 6: Final answer
    x = 438,075.01

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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.