Home / 758,886.48-1,047,329.60-419,420.32

Finding the Fourth Proportional to 758,886.48, 1,047,329.60 and 419,420.32

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Solution

The fourth proportional to 758,886.48, 1,047,329.60 and 419,420.32 is: 578,836.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    758,886.48 : 1,047,329.60 = 419,420.32 : x
  2. Step 2: Convert to fraction form
    758,886.48/1,047,329.60 = 419,420.32/x
  3. Step 3: Cross multiply
    758,886.48x = 1,047,329.60 × 419,420.32
  4. Step 4: Simplify right side
    758,886.48x = 439,271,315,977.47
  5. Step 5: Solve for x
    x = 439,271,315,977.47/758,886.48
  6. Step 6: Final answer
    x = 578,836.66

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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.