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Finding the Fourth Proportional to 589,239, 813,111.53 and 347,466.15

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Solution

The fourth proportional to 589,239, 813,111.53 and 347,466.15 is: 479,480.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    589,239 : 813,111.53 = 347,466.15 : x
  2. Step 2: Convert to fraction form
    589,239/813,111.53 = 347,466.15/x
  3. Step 3: Cross multiply
    589,239x = 813,111.53 × 347,466.15
  4. Step 4: Simplify right side
    589,239x = 282,528,731,112.38
  5. Step 5: Solve for x
    x = 282,528,731,112.38/589,239
  6. Step 6: Final answer
    x = 479,480.70

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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.