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Finding the Fourth Proportional to 562,416.56, 776,134.88 and 307,767.76

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Solution

The fourth proportional to 562,416.56, 776,134.88 and 307,767.76 is: 424,719.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    562,416.56 : 776,134.88 = 307,767.76 : x
  2. Step 2: Convert to fraction form
    562,416.56/776,134.88 = 307,767.76/x
  3. Step 3: Cross multiply
    562,416.56x = 776,134.88 × 307,767.76
  4. Step 4: Simplify right side
    562,416.56x = 238,869,293,475.47
  5. Step 5: Solve for x
    x = 238,869,293,475.47/562,416.56
  6. Step 6: Final answer
    x = 424,719.52

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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.