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Finding the Fourth Proportional to 366,326.60, 549,489.90 and 260,038.40

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Solution

The fourth proportional to 366,326.60, 549,489.90 and 260,038.40 is: 390,057.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,326.60 : 549,489.90 = 260,038.40 : x
  2. Step 2: Convert to fraction form
    366,326.60/549,489.90 = 260,038.40/x
  3. Step 3: Cross multiply
    366,326.60x = 549,489.90 × 260,038.40
  4. Step 4: Simplify right side
    366,326.60x = 142,888,474,412.16
  5. Step 5: Solve for x
    x = 142,888,474,412.16/366,326.60
  6. Step 6: Final answer
    x = 390,057.60

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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.