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Finding the Fourth Proportional to 572,820.80, 790,493.01 and 314,714.39

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Solution

The fourth proportional to 572,820.80, 790,493.01 and 314,714.39 is: 434,306.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,820.80 : 790,493.01 = 314,714.39 : x
  2. Step 2: Convert to fraction form
    572,820.80/790,493.01 = 314,714.39/x
  3. Step 3: Cross multiply
    572,820.80x = 790,493.01 × 314,714.39
  4. Step 4: Simplify right side
    572,820.80x = 248,779,521,488.95
  5. Step 5: Solve for x
    x = 248,779,521,488.95/572,820.80
  6. Step 6: Final answer
    x = 434,306.02

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Double scale
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1.5x scale

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.