Home / 860,417.52-1,187,327.41-478,436.10

Finding the Fourth Proportional to 860,417.52, 1,187,327.41 and 478,436.10

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Solution

The fourth proportional to 860,417.52, 1,187,327.41 and 478,436.10 is: 660,214.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    860,417.52 : 1,187,327.41 = 478,436.10 : x
  2. Step 2: Convert to fraction form
    860,417.52/1,187,327.41 = 478,436.10/x
  3. Step 3: Cross multiply
    860,417.52x = 1,187,327.41 × 478,436.10
  4. Step 4: Simplify right side
    860,417.52x = 568,060,294,267.41
  5. Step 5: Solve for x
    x = 568,060,294,267.41/860,417.52
  6. Step 6: Final answer
    x = 660,214.70

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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 (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.