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Finding the Fourth Proportional to 293,031.70, 439,547.55 and 265,912.90

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Solution

The fourth proportional to 293,031.70, 439,547.55 and 265,912.90 is: 398,869.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    293,031.70 : 439,547.55 = 265,912.90 : x
  2. Step 2: Convert to fraction form
    293,031.70/439,547.55 = 265,912.90/x
  3. Step 3: Cross multiply
    293,031.70x = 439,547.55 × 265,912.90
  4. Step 4: Simplify right side
    293,031.70x = 116,881,363,708.40
  5. Step 5: Solve for x
    x = 116,881,363,708.40/293,031.70
  6. Step 6: Final answer
    x = 398,869.35

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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.