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Finding the Fourth Proportional to 555,194.79, 767,460.02 and 495,358.47

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Solution

The fourth proportional to 555,194.79, 767,460.02 and 495,358.47 is: 684,746.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,194.79 : 767,460.02 = 495,358.47 : x
  2. Step 2: Convert to fraction form
    555,194.79/767,460.02 = 495,358.47/x
  3. Step 3: Cross multiply
    555,194.79x = 767,460.02 × 495,358.47
  4. Step 4: Simplify right side
    555,194.79x = 380,167,818,816.58
  5. Step 5: Solve for x
    x = 380,167,818,816.58/555,194.79
  6. Step 6: Final answer
    x = 684,746.73

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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.