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Finding the Fourth Proportional to 562,166.76, 775,780.02 and 307,515.72

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Solution

The fourth proportional to 562,166.76, 775,780.02 and 307,515.72 is: 424,366.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    562,166.76 : 775,780.02 = 307,515.72 : x
  2. Step 2: Convert to fraction form
    562,166.76/775,780.02 = 307,515.72/x
  3. Step 3: Cross multiply
    562,166.76x = 775,780.02 × 307,515.72
  4. Step 4: Simplify right side
    562,166.76x = 238,564,551,411.91
  5. Step 5: Solve for x
    x = 238,564,551,411.91/562,166.76
  6. Step 6: Final answer
    x = 424,366.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.