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Finding the Fourth Proportional to 868,502,291.04, 1,302,438,071 and 475,319,702.20

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Solution

The fourth proportional to 868,502,291.04, 1,302,438,071 and 475,319,702.20 is: 712,806,957.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    868,502,291.04 : 1,302,438,071 = 475,319,702.20 : x
  2. Step 2: Convert to fraction form
    868,502,291.04/1,302,438,071 = 475,319,702.20/x
  3. Step 3: Cross multiply
    868,502,291.04x = 1,302,438,071 × 475,319,702.20
  4. Step 4: Simplify right side
    868,502,291.04x = 619,074,476,041,662,464
  5. Step 5: Solve for x
    x = 619,074,476,041,662,464/868,502,291.04
  6. Step 6: Final answer
    x = 712,806,957.94

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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.