Home / 623,916.10-861,004.20-337,436.18

Finding the Fourth Proportional to 623,916.10, 861,004.20 and 337,436.18

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Solution

The fourth proportional to 623,916.10, 861,004.20 and 337,436.18 is: 465,661.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    623,916.10 : 861,004.20 = 337,436.18 : x
  2. Step 2: Convert to fraction form
    623,916.10/861,004.20 = 337,436.18/x
  3. Step 3: Cross multiply
    623,916.10x = 861,004.20 × 337,436.18
  4. Step 4: Simplify right side
    623,916.10x = 290,533,968,211.96
  5. Step 5: Solve for x
    x = 290,533,968,211.96/623,916.10
  6. Step 6: Final answer
    x = 465,661.92

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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.