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Finding the Fourth Proportional to 567,974.79, 783,665.42 and 347,156.19

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Solution

The fourth proportional to 567,974.79, 783,665.42 and 347,156.19 is: 478,990.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    567,974.79 : 783,665.42 = 347,156.19 : x
  2. Step 2: Convert to fraction form
    567,974.79/783,665.42 = 347,156.19/x
  3. Step 3: Cross multiply
    567,974.79x = 783,665.42 × 347,156.19
  4. Step 4: Simplify right side
    567,974.79x = 272,054,299,706.17
  5. Step 5: Solve for x
    x = 272,054,299,706.17/567,974.79
  6. Step 6: Final answer
    x = 478,990.10

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Double scale
Find fourth proportional to 567,975.79, 783,666.79 and 347,157.19
Similar ratio
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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.