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Finding the Fourth Proportional to 692,772,457.63, 956,018,382.08 and 375,224,808.89

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Solution

The fourth proportional to 692,772,457.63, 956,018,382.08 and 375,224,808.89 is: 517,806,114.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    692,772,457.63 : 956,018,382.08 = 375,224,808.89 : x
  2. Step 2: Convert to fraction form
    692,772,457.63/956,018,382.08 = 375,224,808.89/x
  3. Step 3: Cross multiply
    692,772,457.63x = 956,018,382.08 × 375,224,808.89
  4. Step 4: Simplify right side
    692,772,457.63x = 358,721,814,704,638,784
  5. Step 5: Solve for x
    x = 358,721,814,704,638,784/692,772,457.63
  6. Step 6: Final answer
    x = 517,806,114.77

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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.