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Finding the Fourth Proportional to 584,387.70, 876,581.55 and 374,435.70

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Solution

The fourth proportional to 584,387.70, 876,581.55 and 374,435.70 is: 561,653.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    584,387.70 : 876,581.55 = 374,435.70 : x
  2. Step 2: Convert to fraction form
    584,387.70/876,581.55 = 374,435.70/x
  3. Step 3: Cross multiply
    584,387.70x = 876,581.55 × 374,435.70
  4. Step 4: Simplify right side
    584,387.70x = 328,223,426,281.34
  5. Step 5: Solve for x
    x = 328,223,426,281.34/584,387.70
  6. Step 6: Final answer
    x = 561,653.55

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Half scale
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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.