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Finding the Fourth Proportional to 315,154.40, 472,730.56 and 93,538.40

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Solution

The fourth proportional to 315,154.40, 472,730.56 and 93,538.40 is: 140,307.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,154.40 : 472,730.56 = 93,538.40 : x
  2. Step 2: Convert to fraction form
    315,154.40/472,730.56 = 93,538.40/x
  3. Step 3: Cross multiply
    315,154.40x = 472,730.56 × 93,538.40
  4. Step 4: Simplify right side
    315,154.40x = 44,218,460,213.50
  5. Step 5: Solve for x
    x = 44,218,460,213.50/315,154.40
  6. Step 6: Final answer
    x = 140,307.29

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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.