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Finding the Fourth Proportional to 310,095.40, 465,143.10 and 240,111.40

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Solution

The fourth proportional to 310,095.40, 465,143.10 and 240,111.40 is: 360,167.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,095.40 : 465,143.10 = 240,111.40 : x
  2. Step 2: Convert to fraction form
    310,095.40/465,143.10 = 240,111.40/x
  3. Step 3: Cross multiply
    310,095.40x = 465,143.10 × 240,111.40
  4. Step 4: Simplify right side
    310,095.40x = 111,686,160,941.34
  5. Step 5: Solve for x
    x = 111,686,160,941.34/310,095.40
  6. Step 6: Final answer
    x = 360,167.10

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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.