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Finding the Fourth Proportional to 602,678.75, 831,641.67 and 357,621.27

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Solution

The fourth proportional to 602,678.75, 831,641.67 and 357,621.27 is: 493,484.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    602,678.75 : 831,641.67 = 357,621.27 : x
  2. Step 2: Convert to fraction form
    602,678.75/831,641.67 = 357,621.27/x
  3. Step 3: Cross multiply
    602,678.75x = 831,641.67 × 357,621.27
  4. Step 4: Simplify right side
    602,678.75x = 297,412,750,210.32
  5. Step 5: Solve for x
    x = 297,412,750,210.32/602,678.75
  6. Step 6: Final answer
    x = 493,484.72

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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.