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Finding the Fourth Proportional to 525,663.98, 725,416.58 and 283,946.55

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Solution

The fourth proportional to 525,663.98, 725,416.58 and 283,946.55 is: 391,846.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,663.98 : 725,416.58 = 283,946.55 : x
  2. Step 2: Convert to fraction form
    525,663.98/725,416.58 = 283,946.55/x
  3. Step 3: Cross multiply
    525,663.98x = 725,416.58 × 283,946.55
  4. Step 4: Simplify right side
    525,663.98x = 205,979,533,784.07
  5. Step 5: Solve for x
    x = 205,979,533,784.07/525,663.98
  6. Step 6: Final answer
    x = 391,846.40

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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.