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Finding the Fourth Proportional to 525,603.16, 725,333.18 and 299,248.76

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Solution

The fourth proportional to 525,603.16, 725,333.18 and 299,248.76 is: 412,963.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,603.16 : 725,333.18 = 299,248.76 : x
  2. Step 2: Convert to fraction form
    525,603.16/725,333.18 = 299,248.76/x
  3. Step 3: Cross multiply
    525,603.16x = 725,333.18 × 299,248.76
  4. Step 4: Simplify right side
    525,603.16x = 217,055,054,701.86
  5. Step 5: Solve for x
    x = 217,055,054,701.86/525,603.16
  6. Step 6: Final answer
    x = 412,963.76

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Double scale
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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.