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Finding the Fourth Proportional to 474,878.76, 655,332.54 and 260,018.76

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Solution

The fourth proportional to 474,878.76, 655,332.54 and 260,018.76 is: 358,825.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    474,878.76 : 655,332.54 = 260,018.76 : x
  2. Step 2: Convert to fraction form
    474,878.76/655,332.54 = 260,018.76/x
  3. Step 3: Cross multiply
    474,878.76x = 655,332.54 × 260,018.76
  4. Step 4: Simplify right side
    474,878.76x = 170,398,754,438.45
  5. Step 5: Solve for x
    x = 170,398,754,438.45/474,878.76
  6. Step 6: Final answer
    x = 358,825.81

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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.