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Finding the Fourth Proportional to 572,522.20, 858,048.90 and 319,802.20

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Solution

The fourth proportional to 572,522.20, 858,048.90 and 319,802.20 is: 479,293.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,522.20 : 858,048.90 = 319,802.20 : x
  2. Step 2: Convert to fraction form
    572,522.20/858,048.90 = 319,802.20/x
  3. Step 3: Cross multiply
    572,522.20x = 858,048.90 × 319,802.20
  4. Step 4: Simplify right side
    572,522.20x = 274,405,925,927.58
  5. Step 5: Solve for x
    x = 274,405,925,927.58/572,522.20
  6. Step 6: Final answer
    x = 479,293.08

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1.5x scale

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.