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Finding the Fourth Proportional to 424,082.40, 636,123.60 and 366,345.60

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Solution

The fourth proportional to 424,082.40, 636,123.60 and 366,345.60 is: 549,518.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,082.40 : 636,123.60 = 366,345.60 : x
  2. Step 2: Convert to fraction form
    424,082.40/636,123.60 = 366,345.60/x
  3. Step 3: Cross multiply
    424,082.40x = 636,123.60 × 366,345.60
  4. Step 4: Simplify right side
    424,082.40x = 233,041,081,916.16
  5. Step 5: Solve for x
    x = 233,041,081,916.16/424,082.40
  6. Step 6: Final answer
    x = 549,518.40

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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.