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Finding the Fourth Proportional to 553,302.10, 829,953.15 and 497,314.90

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Solution

The fourth proportional to 553,302.10, 829,953.15 and 497,314.90 is: 745,972.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,302.10 : 829,953.15 = 497,314.90 : x
  2. Step 2: Convert to fraction form
    553,302.10/829,953.15 = 497,314.90/x
  3. Step 3: Cross multiply
    553,302.10x = 829,953.15 × 497,314.90
  4. Step 4: Simplify right side
    553,302.10x = 412,748,067,796.94
  5. Step 5: Solve for x
    x = 412,748,067,796.94/553,302.10
  6. Step 6: Final answer
    x = 745,972.35

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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.