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Finding the Fourth Proportional to 837,653.42, 1,155,700.70 and 475,048.82

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Solution

The fourth proportional to 837,653.42, 1,155,700.70 and 475,048.82 is: 655,419.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    837,653.42 : 1,155,700.70 = 475,048.82 : x
  2. Step 2: Convert to fraction form
    837,653.42/1,155,700.70 = 475,048.82/x
  3. Step 3: Cross multiply
    837,653.42x = 1,155,700.70 × 475,048.82
  4. Step 4: Simplify right side
    837,653.42x = 549,014,253,808.17
  5. Step 5: Solve for x
    x = 549,014,253,808.17/837,653.42
  6. Step 6: Final answer
    x = 655,419.34

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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.