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Finding the Fourth Proportional to 576,432.51, 865,176.09 and 292,319.16

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Solution

The fourth proportional to 576,432.51, 865,176.09 and 292,319.16 is: 438,746.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,432.51 : 865,176.09 = 292,319.16 : x
  2. Step 2: Convert to fraction form
    576,432.51/865,176.09 = 292,319.16/x
  3. Step 3: Cross multiply
    576,432.51x = 865,176.09 × 292,319.16
  4. Step 4: Simplify right side
    576,432.51x = 252,907,547,880.88
  5. Step 5: Solve for x
    x = 252,907,547,880.88/576,432.51
  6. Step 6: Final answer
    x = 438,746.16

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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.