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Finding the Fourth Proportional to 402,894.30, 604,341.45 and 297,918.30

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Solution

The fourth proportional to 402,894.30, 604,341.45 and 297,918.30 is: 446,877.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,894.30 : 604,341.45 = 297,918.30 : x
  2. Step 2: Convert to fraction form
    402,894.30/604,341.45 = 297,918.30/x
  3. Step 3: Cross multiply
    402,894.30x = 604,341.45 × 297,918.30
  4. Step 4: Simplify right side
    402,894.30x = 180,044,377,403.54
  5. Step 5: Solve for x
    x = 180,044,377,403.54/402,894.30
  6. Step 6: Final answer
    x = 446,877.45

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Double scale
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Similar ratio
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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.