Home / 765,312,416.25-1,056,164,579.76-430,806,523.47

Finding the Fourth Proportional to 765,312,416.25, 1,056,164,579.76 and 430,806,523.47

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Solution

The fourth proportional to 765,312,416.25, 1,056,164,579.76 and 430,806,523.47 is: 594,531,829.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    765,312,416.25 : 1,056,164,579.76 = 430,806,523.47 : x
  2. Step 2: Convert to fraction form
    765,312,416.25/1,056,164,579.76 = 430,806,523.47/x
  3. Step 3: Cross multiply
    765,312,416.25x = 1,056,164,579.76 × 430,806,523.47
  4. Step 4: Simplify right side
    765,312,416.25x = 455,002,590,818,559,168
  5. Step 5: Solve for x
    x = 455,002,590,818,559,168/765,312,416.25
  6. Step 6: Final answer
    x = 594,531,829.30

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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.