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Finding the Fourth Proportional to 893,805.60, 1,340,708.40 and 473,901.60

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Solution

The fourth proportional to 893,805.60, 1,340,708.40 and 473,901.60 is: 710,852.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    893,805.60 : 1,340,708.40 = 473,901.60 : x
  2. Step 2: Convert to fraction form
    893,805.60/1,340,708.40 = 473,901.60/x
  3. Step 3: Cross multiply
    893,805.60x = 1,340,708.40 × 473,901.60
  4. Step 4: Simplify right side
    893,805.60x = 635,363,855,893.44
  5. Step 5: Solve for x
    x = 635,363,855,893.44/893,805.60
  6. Step 6: Final answer
    x = 710,852.40

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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.