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Finding the Fourth Proportional to 693,450,602.98, 956,963,111.08 and 375,909,866.98

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Solution

The fourth proportional to 693,450,602.98, 956,963,111.08 and 375,909,866.98 is: 518,756,309.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    693,450,602.98 : 956,963,111.08 = 375,909,866.98 : x
  2. Step 2: Convert to fraction form
    693,450,602.98/956,963,111.08 = 375,909,866.98/x
  3. Step 3: Cross multiply
    693,450,602.98x = 956,963,111.08 × 375,909,866.98
  4. Step 4: Simplify right side
    693,450,602.98x = 359,731,875,790,849,792
  5. Step 5: Solve for x
    x = 359,731,875,790,849,792/693,450,602.98
  6. Step 6: Final answer
    x = 518,756,309.74

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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.