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Finding the Fourth Proportional to 584,429.30, 876,643.95 and 385,363.70

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Solution

The fourth proportional to 584,429.30, 876,643.95 and 385,363.70 is: 578,045.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    584,429.30 : 876,643.95 = 385,363.70 : x
  2. Step 2: Convert to fraction form
    584,429.30/876,643.95 = 385,363.70/x
  3. Step 3: Cross multiply
    584,429.30x = 876,643.95 × 385,363.70
  4. Step 4: Simplify right side
    584,429.30x = 337,826,756,154.62
  5. Step 5: Solve for x
    x = 337,826,756,154.62/584,429.30
  6. Step 6: Final answer
    x = 578,045.55

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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.