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Finding the Fourth Proportional to 651,779.74, 898,514.10 and 457,596.28

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Solution

The fourth proportional to 651,779.74, 898,514.10 and 457,596.28 is: 630,821.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    651,779.74 : 898,514.10 = 457,596.28 : x
  2. Step 2: Convert to fraction form
    651,779.74/898,514.10 = 457,596.28/x
  3. Step 3: Cross multiply
    651,779.74x = 898,514.10 × 457,596.28
  4. Step 4: Simplify right side
    651,779.74x = 411,156,709,687.55
  5. Step 5: Solve for x
    x = 411,156,709,687.55/651,779.74
  6. Step 6: Final answer
    x = 630,821.56

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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.