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Finding the Fourth Proportional to 355,254.30, 532,881.45 and 316,547.10

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Solution

The fourth proportional to 355,254.30, 532,881.45 and 316,547.10 is: 474,820.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,254.30 : 532,881.45 = 316,547.10 : x
  2. Step 2: Convert to fraction form
    355,254.30/532,881.45 = 316,547.10/x
  3. Step 3: Cross multiply
    355,254.30x = 532,881.45 × 316,547.10
  4. Step 4: Simplify right side
    355,254.30x = 168,682,077,641.30
  5. Step 5: Solve for x
    x = 168,682,077,641.30/355,254.30
  6. Step 6: Final answer
    x = 474,820.65

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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.