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Finding the Fourth Proportional to 660,957.88, 912,127.34 and 359,151.88

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Solution

The fourth proportional to 660,957.88, 912,127.34 and 359,151.88 is: 495,632.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    660,957.88 : 912,127.34 = 359,151.88 : x
  2. Step 2: Convert to fraction form
    660,957.88/912,127.34 = 359,151.88/x
  3. Step 3: Cross multiply
    660,957.88x = 912,127.34 × 359,151.88
  4. Step 4: Simplify right side
    660,957.88x = 327,592,248,960.40
  5. Step 5: Solve for x
    x = 327,592,248,960.40/660,957.88
  6. Step 6: Final answer
    x = 495,632.56

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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.