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Finding the Third Proportional to 255,547,689.75 and 555,869,979

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Solution

The third proportional to 255,547,689.75 and 555,869,979 is: 1,209,134,130.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,547,689.75 : 555,869,979 = 555,869,979 : x
  2. Step 2: Convert to fraction form
    255,547,689.75/555,869,979 = 555,869,979/x
  3. Step 3: Cross multiply
    255,547,689.75x = 555,869,979 × 555,869,979
  4. Step 4: Simplify right side
    255,547,689.75x = 308,991,433,553,460,416
  5. Step 5: Solve for x
    x = 308,991,433,553,460,416/255,547,689.75
  6. Step 6: Final answer
    x = 1,209,134,130.13

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.