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Finding the Fourth Proportional to 575,430.20, 794,140.98 and 317,357.64

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Solution

The fourth proportional to 575,430.20, 794,140.98 and 317,357.64 is: 437,979.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    575,430.20 : 794,140.98 = 317,357.64 : x
  2. Step 2: Convert to fraction form
    575,430.20/794,140.98 = 317,357.64/x
  3. Step 3: Cross multiply
    575,430.20x = 794,140.98 × 317,357.64
  4. Step 4: Simplify right side
    575,430.20x = 252,026,706,050.00
  5. Step 5: Solve for x
    x = 252,026,706,050.00/575,430.20
  6. Step 6: Final answer
    x = 437,979.63

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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.