Home / 676,038.64-932,945.88-389,510.32

Finding the Fourth Proportional to 676,038.64, 932,945.88 and 389,510.32

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Solution

The fourth proportional to 676,038.64, 932,945.88 and 389,510.32 is: 537,531.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    676,038.64 : 932,945.88 = 389,510.32 : x
  2. Step 2: Convert to fraction form
    676,038.64/932,945.88 = 389,510.32/x
  3. Step 3: Cross multiply
    676,038.64x = 932,945.88 × 389,510.32
  4. Step 4: Simplify right side
    676,038.64x = 363,392,048,261.48
  5. Step 5: Solve for x
    x = 363,392,048,261.48/676,038.64
  6. Step 6: Final answer
    x = 537,531.48

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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.