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Finding the Fourth Proportional to 575,751.60, 794,501.42 and 317,631.85

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Solution

The fourth proportional to 575,751.60, 794,501.42 and 317,631.85 is: 438,312.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    575,751.60 : 794,501.42 = 317,631.85 : x
  2. Step 2: Convert to fraction form
    575,751.60/794,501.42 = 317,631.85/x
  3. Step 3: Cross multiply
    575,751.60x = 794,501.42 × 317,631.85
  4. Step 4: Simplify right side
    575,751.60x = 252,358,952,287.81
  5. Step 5: Solve for x
    x = 252,358,952,287.81/575,751.60
  6. Step 6: Final answer
    x = 438,312.20

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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.