Home / 860,417.02-1,187,326.72-478,435.60

Finding the Fourth Proportional to 860,417.02, 1,187,326.72 and 478,435.60

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Solution

The fourth proportional to 860,417.02, 1,187,326.72 and 478,435.60 is: 660,214.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    860,417.02 : 1,187,326.72 = 478,435.60 : x
  2. Step 2: Convert to fraction form
    860,417.02/1,187,326.72 = 478,435.60/x
  3. Step 3: Cross multiply
    860,417.02x = 1,187,326.72 × 478,435.60
  4. Step 4: Simplify right side
    860,417.02x = 568,059,371,679.23
  5. Step 5: Solve for x
    x = 568,059,371,679.23/860,417.02
  6. Step 6: Final answer
    x = 660,214.01

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Double scale
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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.