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Finding the Fourth Proportional to 540,148.59, 745,341.48 and 298,416.76

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Solution

The fourth proportional to 540,148.59, 745,341.48 and 298,416.76 is: 411,780.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,148.59 : 745,341.48 = 298,416.76 : x
  2. Step 2: Convert to fraction form
    540,148.59/745,341.48 = 298,416.76/x
  3. Step 3: Cross multiply
    540,148.59x = 745,341.48 × 298,416.76
  4. Step 4: Simplify right side
    540,148.59x = 222,422,387,691.85
  5. Step 5: Solve for x
    x = 222,422,387,691.85/540,148.59
  6. Step 6: Final answer
    x = 411,780.00

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Double scale
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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.