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Finding the Fourth Proportional to 562,113.48, 775,728.90 and 307,464.68

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Solution

The fourth proportional to 562,113.48, 775,728.90 and 307,464.68 is: 424,307.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    562,113.48 : 775,728.90 = 307,464.68 : x
  2. Step 2: Convert to fraction form
    562,113.48/775,728.90 = 307,464.68/x
  3. Step 3: Cross multiply
    562,113.48x = 775,728.90 × 307,464.68
  4. Step 4: Simplify right side
    562,113.48x = 238,509,234,126.61
  5. Step 5: Solve for x
    x = 238,509,234,126.61/562,113.48
  6. Step 6: Final answer
    x = 424,307.98

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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.