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Finding the Fourth Proportional to 546,876.40, 820,314.60 and 346,547.20

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Solution

The fourth proportional to 546,876.40, 820,314.60 and 346,547.20 is: 519,820.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    546,876.40 : 820,314.60 = 346,547.20 : x
  2. Step 2: Convert to fraction form
    546,876.40/820,314.60 = 346,547.20/x
  3. Step 3: Cross multiply
    546,876.40x = 820,314.60 × 346,547.20
  4. Step 4: Simplify right side
    546,876.40x = 284,277,727,749.12
  5. Step 5: Solve for x
    x = 284,277,727,749.12/546,876.40
  6. Step 6: Final answer
    x = 519,820.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.