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Finding the Fourth Proportional to 366,421.40, 549,632.10 and 307,372.40

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Solution

The fourth proportional to 366,421.40, 549,632.10 and 307,372.40 is: 461,058.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,421.40 : 549,632.10 = 307,372.40 : x
  2. Step 2: Convert to fraction form
    366,421.40/549,632.10 = 307,372.40/x
  3. Step 3: Cross multiply
    366,421.40x = 549,632.10 × 307,372.40
  4. Step 4: Simplify right side
    366,421.40x = 168,941,737,694.04
  5. Step 5: Solve for x
    x = 168,941,737,694.04/366,421.40
  6. Step 6: Final answer
    x = 461,058.60

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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.