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Finding the Fourth Proportional to 358,492.80, 537,739.20 and 342,746.40

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Solution

The fourth proportional to 358,492.80, 537,739.20 and 342,746.40 is: 514,119.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,492.80 : 537,739.20 = 342,746.40 : x
  2. Step 2: Convert to fraction form
    358,492.80/537,739.20 = 342,746.40/x
  3. Step 3: Cross multiply
    358,492.80x = 537,739.20 × 342,746.40
  4. Step 4: Simplify right side
    358,492.80x = 184,308,174,938.88
  5. Step 5: Solve for x
    x = 184,308,174,938.88/358,492.80
  6. Step 6: Final answer
    x = 514,119.60

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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.